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Contemporary Canadian & From Scratch Cooking - Undefined, Hamilton, ON

Undefined

4.8
4.8
689 Reviews
CAN$31 to CAN$50
Bistro
UnDefined has been changing the way people think about dining out in Hamilton. Voted one of Hamilton's best all-around restaurants for 2021, 2022, 2023, we are making a big impact on King William Street. With an evolving, seasonal and whimsical approach, our passion is what drives us every day. We strive to push the limits, and for our team, it is just what we love to do. We cook from scratch because that is just the way it should be. We love to challenge the way we all think about dining out.

We believe that there is no reason to put yourself in a box when going out with friends, so we do not do that here. Whether it is a night out with friends, an intimate dinner for two, or just something extraordinary, We are not afraid to take the familiar and turn it into something memorable. If it tastes good, we will put it on a plate, in a glass, or whatever. Our mantra is as simple as eat, drink, and enjoy!

Make a reservation

2 people

7:00 p.m.


Booked 6 times today

Dining areas

Additional information

  • Dining style
    Casual Elegant
  • Price
    CAN$31 to CAN$50
  • Cuisines
    Bistro, Farm-to-table, Cocktail Bar
  • Hours of Operation
    Brunch Sat, Sun 10:00 am–3:00 pm Lunch Wed–Fri 11:30 am–4:00 pm Dinner Daily 4:00 pm–10:00 pm Bar Fri, Sat 10:00 pm–12:00 am
  • Phone number
    (905) 393-8343
  • Payment Options
    AMEX, Mastercard, Visa
  • Dress Code
    Business Casual
  • Owned/operated by
    Women
  • Neighbourhood
    Hamilton
  • Cross Street
    James Street North & King William
  • Parking Details
    Street Parking
  • Public Transit
    James Street North & King William
  • Additional
    Bar/Lounge, Beer, Chef's Table, Cocktails, Corkage Fee, Full Bar, Gender Neutral Restroom, Gluten-free Options, Happy Hour, Late Night, Non-Smoking, Patio/Outdoor Dining, Vegan, Weekend Brunch, Wine
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What 689 people are saying

Overall ratings and reviews

Reviews can only be made by diners who have eaten at this restaurant

4.8
4.8 based on recent ratings
  • 4.8Food
  • 4.8Service
  • 4.7Ambience
  • 4.5Value

NoiseModerate

Loved For

  • Southern Ontario

    Best Food

  • Southern Ontario

    Best Service

  • Southern Ontario

    Innovative

  • Southern Ontario

    Great for creative cocktails

  • Southern Ontario

    Hot spot

689 Reviews
  1. BarbJ

    Toronto

    2 reviews

    5.0

    2 reviews

    Dined 2 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great food, great service, loved the open kitchen. Will be back, for sure!

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  2. JuliaS

    Toronto

    1 review

    4.0

    1 review

    Dined 2 days ago

    1. Overall 4
    2. Food 5
    3. Service 4
    4. Ambience 5
    Great food and service would definitely recommend this place!

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  3. JayD

    Toronto

    2 reviews

    vip
    5.0

    2 reviews

    Dined 3 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great place for a date night. Delicious cocktails, delicious food, good vibes.

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  4. LinaA

    Toronto

    1 review

    5.0

    1 review

    Dined 4 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Excellent the food is amazing and the people are very friendly.

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  5. SandraD

    Toronto

    1 review

    5.0

    1 review

    Dined 4 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The food was fantastic. The service was impeccable. I'd go back in a second

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  6. LoganK

    Toronto

    2 reviews

    5.0

    2 reviews

    Dined on February 18, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Went for a date with my partner, and the food was excellent. It's rare where I can look at a menu and feel like I could order anything off it and be happy. Our server was incredibly well spoken and professional, while also maintaining a friendly attitude and atmosphere. Service was also fast enough where you were not having a long wait for the food, but also not so fast where it felt like you are being shoved out the door. Genuinely a great place to eat on all levels and would recommend to anyone.

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  7. TairaK

    Toronto

    2 reviews

    5.0

    2 reviews

    Dined on February 17, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Amazing time! The food and drinks were exceptional. There wasn’t a single dish we didn’t enjoy! The only thing was the cocktails were really pricy- but delicious lol. We will definitely return in the future.

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  8. NathanielS

    Toronto

    1 review

    5.0

    1 review

    Dined on February 17, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    The cod was perfectly cooked. Drink pairings were outstanding, and our server Kate was fantastic

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  9. hhhhh

    Toronto

    1 review

    1.0

    1 review

    Dined on February 15, 2024

    1. Overall 1
    2. Food 1
    3. Service 3
    4. Ambience 3
    This is the worst restaurant I have ever eaten at. The Valentine's Day set meal was so bad that my date and I kept drinking water to swallow it. don’t understand why the Valentine’s Day set meal is so unpalatable, maybe it’s because want to break up all the couples. My friend said the brunch was quite delicious, but I didn’t have the courage to step into this restaurant again.300 dollars for a very bad dining experience. The waiters had a good attitude and asked us how we felt. I believe they could see our embarrassment. In general, you can try this restaurant because many of my friends have recommended this restaurant, but be sure not to come on Valentine’s Day.

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  10. CMMili

    Toronto

    1 review

    5.0

    1 review

    Dined on February 15, 2024

    1. Overall 5
    2. Food 4
    3. Service 4
    4. Ambience 5
    Food is very good in a upbeat atmosphere, with the seating at the bar being as good and welcoming as the ones at the table. Would definitely recommend!

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  11. AliI

    Toronto

    1 review

    3.0

    1 review

    Dined on February 15, 2024

    1. Overall 3
    2. Food 5
    3. Service 3
    4. Ambience 5
    The food was good and all but the constant reminder from our server to hurry and eat because they have guest coming in after us who need that table was just something i have never seen another restaurant do....

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  12. BrownSugar

    Calgary

    16 reviews

    vip
    5.0

    16 reviews

    Dined on February 14, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    As always great experience but love the element of surprise the valentines shared was the perfect amount of food and he beautiful flowers were a great touch

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  13. Fuzion

    San Francisco

    1 review

    5.0

    1 review

    Dined on February 14, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Fantastic food, service and ambience Will go there again for sure. For all you food lovers out there, this place is worth checking out!

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  14. PamI

    Toronto

    1 review

    5.0

    1 review

    Dined on February 10, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Food, cocktails & service were outstanding! Highly recommended for a celebratory meal or fun night with friends. Don’t miss the boar dumplings!

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  15. Saturday422

    Denver

    2 reviews

    4.0

    2 reviews

    Dined on February 9, 2024

    1. Overall 4
    2. Food 4
    3. Service 5
    4. Ambience 2
    Overall, a good dining experience. Quite enjoyed the offerings. Including flat iron steak. Wild boar dumplings - a pleasant surprise. Meghan provided fantastic service. All six of group served altogether. My order was served almost room temp. I believe it sat too long. The music became an issue as the evening went in. EDM. Steady thumping I couldn’t get away from. Probably a reflect of my age. Cauliflower app was bland. Weak. As was the peach/ricotta and prosciutto on bread. Peaches were flavourless. Overall-good. Price seemed reasonable.

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  16. OpenTable Diner

    Toronto

    8 reviews

    5.0

    8 reviews

    Dined on February 9, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    This is my 3rd time at UnDefined. This place is nothing but class. From the servers to the food...absolutely top notch! Thanks to the staff for always making my time at undefined a magical one. Can't wait to come back! 10 stars!

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  17. Kevin

    Toronto

    13 reviews

    5.0

    13 reviews

    Dined on February 8, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Great team that are welcoming and efficient. Love this restaurant and can’t wait to go back

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  18. Cpcp

    Toronto

    23 reviews

    vip
    4.0

    23 reviews

    Dined on February 4, 2024

    1. Overall 4
    2. Food 4
    3. Service 4
    4. Ambience 4
    this is my second time at undefined. Once again, I forgot to get the name of our “server” who also happened to be a bartender who we thought was wonderful. She was super friendly and engaging. the flavours were outstanding. We shared of variety of starters, including the wagyu tartare, the beet salad, and the boar wontons. we also had the calamari which was really good but not as unique as the other dishes we had. Sticky toffee pudding to share was delicious.

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  19. NatalieP

    Toronto

    12 reviews

    vip
    5.0

    12 reviews

    Dined on February 4, 2024

    1. Overall 5
    2. Food 4
    3. Service 5
    4. Ambience 5
    We ate at Undefined for the first time last night and were very impressed with everything from the vibe, to the excellent server Ryan and last but not least the excellent food. The standout of the night was the wild boar dumplings!

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  20. OpenTable Diner

    Toronto

    5 reviews

    vip
    5.0

    5 reviews

    Dined on January 27, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Ryan is outstanding and the food is fantastic!! Highly recommend

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  21. Steve

    Toronto

    1 review

    5.0

    1 review

    Dined on January 27, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Food was amazing. Such flavours and the service was prompt and friendly. Would definetly recomend this a a great place to eat.

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  22. MelE

    Puerto Vallarta

    2 reviews

    4.0

    2 reviews

    Dined on January 27, 2024

    1. Overall 4
    2. Food 3
    3. Service 5
    4. Ambience 3
    I went to Undefined for the first time with my sister for a special Friday night out. Ryan served us and was amazing. Zero complaints with the service! We shared the kale salad to start and I'd say it was just fine. For my main I had the burger. I asked if they had a gluten free bun option, as I can't eat gluten. I was told they don't but their sister restaurant HAMBRGR does. Not sure why they even bothered to tell me that. So I had the burger without a bun, ate it with a knife and fork, which I'm fine with. The burger was just not impressive. I've had burgers from HAMBRGR several times and they are more delicious for a fraction of the price. The truffle fries that came with the burger were perfect and my sister enjoyed the tortellini. The noise in the room got louder and louder as we were there and it got harder to have a conversation. Also, a couple times a fish dish was brought out to people and the room filled with fishy smoke that really lingered. The smell was on my coat afterwards. Overall, for the price, I thought there'd be more care and attention to detail to the food, and maybe better ventilation.

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  23. SteveK

    Toronto

    1 review

    4.0

    1 review

    Dined on January 23, 2024

    1. Overall 4
    2. Food 5
    3. Service 4
    4. Ambience 4
    Great meal with great service and would definitely repeat. Menu is limited.

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  24. JoshG

    Toronto

    1 review

    4.0

    1 review

    Dined on January 21, 2024

    1. Overall 4
    2. Food 4
    3. Service 5
    4. Ambience 3
    Our waiter was ammmmaaaazzzzziiiiiiiiiiiiiiinnnnng.

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  25. JordanV

    Toronto

    1 review

    5.0

    1 review

    Dined on January 20, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Incredible service and flavourful food! The team that was working at the restaurant the night of Jan 20th, 2024 were super accommodating to our table and helped with a last minute seating request. The small focused menu and creative cocktails/drinks are well thought out.

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  26. SaraS

    Toronto

    1 review

    5.0

    1 review

    Dined on January 20, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The food is absolutely phenomenal, best in the city. The quality and service is unmatched. Incredible menu! If you’re thinking about looking around at other restaurants, don’t. Save yourself the time. When we sat down, our server welcomed us as it was our first time, and they told us it wouldn’t be our last. They were right, we can’t wait to go back.

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  27. HelenV

    Toronto

    11 reviews

    5.0

    11 reviews

    Dined on January 20, 2024

    1. Overall 5
    2. Food 4
    3. Service 5
    4. Ambience 5
    This was the first visit to Undefined for my friend and me. We enjoyed the atmosphere very much as we caught up over brunch. We each chose one of the Eggs Benedict options and enjoyed them immensely. The service was excellent - the server was attentive without being intrusive. We will definitely visit again.

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  28. OpenTable Diner

    Naples

    1 review

    5.0

    1 review

    Dined on January 11, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    The food was excellent and the service was great. The only negative was that we were seated next to a table of very loud men. That was not the restaurant’s fault and our waiter did ask them to be considerate of other diners. Overall great experience. We’ll definitely go back.

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  29. SteveG

    Toronto

    4 reviews

    5.0

    4 reviews

    Dined on January 7, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great food, great drinks, great service. Ryan, thanks for the laughs.

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  30. IanB

    Toronto

    1 review

    5.0

    1 review

    Dined on January 6, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    First time visiting and was impressed! Small focused menu of excellent seafood, beef, and game options. Cocktails were great, food was delicious, and the presentation is beautiful. This is a place that really cares about their food. Service was friendly and attentive. Great spot for a date or special occasion. Prices are a higher than your average downtown restaurant but you definitely get what you pay for. Will be returning.

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  31. CynthiaM

    Toronto

    1 review

    5.0

    1 review

    Dined on January 6, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 3
    Absolutely in love with this restaurant! The food never disappoints, although first time for brunch there and was not overly impressed with the noise level, the music was so loud that you had to yell over it to have a conversation.

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  32. OpenTable Diner

    Toronto

    1 review

    5.0

    1 review

    Dined on January 6, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Cannot recommend this place enough, the food was incredible, the drinks were creative and flavorful and the staff were engaging and entertaining. A fantastic spot for anyone!

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  33. Canuck

    Toronto

    4 reviews

    vip
    5.0

    4 reviews

    Dined on January 6, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Have been there a few times. Always have had an amazing experience. The food is unique and flavourful. The service is excellent, especially Ryan. Look forward to returning again soon!

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  34. OpenTable Diner

    New York City

    6 reviews

    vip
    5.0

    6 reviews

    Dined on January 5, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Amazing fresh and flavourful food and the staff was so friendly and helpful making g accommodations for allergies.

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  35. OpenTable Diner

    Puebla

    8 reviews

    vip
    4.0

    8 reviews

    Dined on January 1, 2024

    1. Overall 4
    2. Food 5
    3. Service 5
    4. Ambience 5
    Excelente lugar, comida deliciosa de autor y súper servicio calido y muy amable

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  36. LeanneJ

    Toronto

    1 review

    5.0

    1 review

    Dined on January 1, 2024

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great service, food and atmosphere for New Years!

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  37. ASHLEYS

    Toronto

    9 reviews

    5.0

    9 reviews

    Dined on December 31, 2023

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Incredible experience from the food to the service would 100% recommend

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  38. OpenTable Diner

    Toronto

    1 review

    4.0

    1 review

    Dined on December 31, 2023

    1. Overall 4
    2. Food 4
    3. Service 5
    4. Ambience 5
    Their new years eve menu was fantastic and well thought out! Worth the price for sure! The staff were friendly and attentive. Would definitely come back again!

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  39. OpenTable Diner

    Tampa

    15 reviews

    vip
    5.0

    15 reviews

    Dined on December 31, 2023

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We celebrated NYE at Undefined with their tasting menu and it was phenomenal. Some folks had paired cocktails and others paired wine and all were perfectly matched and delicious. Ryan made us feel so welcome and made sure our dietary restrictions (celiac) were looked after. A wonderful night all around - we’ll definitely be back well before next NYE.

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  40. Erica

    Toronto

    2 reviews

    5.0

    2 reviews

    Dined on December 31, 2023

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Went with my boyfriend on a date and the service along with the food was amazing! would totally go again!

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Safety precautions

  • Cleaning & sanitising

    • Contactless payment available

FAQs

Undefined is rated 4.8 stars by 689 OpenTable diners.

Undefined does offer gift cards which you can purchase here.

Yes, you can generally book this restaurant by choosing the date, time and party size on OpenTable.

Make a reservation

2 people

7:00 p.m.


Booked 6 times today
Google Map for Undefined

35 King William St, Hamilton, ON L8R 1A1

Dining areas

Additional information

  • Cross Street
    James Street North & King William
  • Neighbourhood
    Hamilton
  • Hours of Operation
    Brunch Sat, Sun 10:00 am–3:00 pm Lunch Wed–Fri 11:30 am–4:00 pm Dinner Daily 4:00 pm–10:00 pm Bar Fri, Sat 10:00 pm–12:00 am
  • Price
    CAN$31 to CAN$50
  • Cuisines
    Bistro, Farm-to-table, Cocktail Bar
  • Dining style
    Casual Elegant
  • Dress Code
    Business Casual
  • Parking Details
    Street Parking
  • Public Transit
    James Street North & King William
  • Payment Options
    AMEX, Mastercard, Visa
  • Owned/operated by
    Women
  • Additional
    Bar/Lounge, Beer, Chef's Table, Cocktails, Corkage Fee, Full Bar, Gender Neutral Restroom, Gluten-free Options, Happy Hour, Late Night, Non-Smoking, Patio/Outdoor Dining, Vegan, Weekend Brunch, Wine
Gift card

Gift card

Send gift cards instantly by email or print to present in person.

Send a gift card
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