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

Undefined

4.7
4.7
812 Reviews
CAN$31 to CAN$50
Bistro

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2 people
19:00
Booked 7 times today
Experiences are available.
  • Good for special occasions
  • Great for creative cocktails
  • Charming
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!

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 10:00–15:00 Lunch Wed–Fri 11:30–16:00 Dinner Daily 16:00–22:00 Bar Fri, Sat 22:00–00:00
  • Phone number
    (905) 393-8343
  • Payment Options
    AMEX, Mastercard, Visa
  • Dress code
    Business Casual
  • Area
    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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Experiences

  • Brunch UnDefined!

    31 Jan 2025 - 30 Apr 2025
    Join us for an UnDefined brunch Saturdays & Sundays. UnDefined is know for its ever evolving menus and unique additions. Indulge in some of our favorites as well as a seasonal a la carte offerings to brunch without definition. Reservations highly recommended - No additional costs - Menu offering is a la carte
    Brunch UnDefined! photo

What 812 people are saying

Overall ratings and reviews

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

4.7
4.7 based on recent ratings
  • 4.7Food
  • 4.8Service
  • 4.6Ambience
  • 4.4Value

NoiseModerate

Loved For

  • Toronto / Ontario

    Bistro

Review summary

AI-generated from verified diner reviews
Undefined shines with "exceptional service" and "delicious food." Guests rave about the "inventive and creative" menu, with highlights like mussels, risotto, and unique brunch options. The staff, including servers like Hannah and Kennedy, are "attentive and friendly," enhancing the vibrant atmosphere. A "must-visit" spot for any occasion.

812 Reviews
  1. OpenTable Diner

    Toronto

    1 review

    5.0

    1 review

    Dined 1 day ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Amazing spot. We had an amazing valentines day and would love to go back!

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  2. Terri

    Toronto

    1 review

    5.0

    1 review

    Dined 2 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    My husband and I dined here for Valentine’s Day and we have been raving about our experience since then! The service was great and the food was even better. Simply phenomenal! Everything we had was good- wild boar dumplings (these are a must!), scallop and pancetta risotto, a feature wagyu steak dish, and a chocolate cherry dessert. Highly recommend Undefined if you’re looking for great food at a very reasonable price!

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  3. Kenlyn

    Toronto

    10 reviews

    5.0

    10 reviews

    Dined 5 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Our first time here and won’t be our last! We had read so many good reviews and undefined totally lived up to their reputation! We had the risotto, the kale salad, and the hanger steak. Plus the dumplings as an appetizer. The mock tails were also fabulous! Don’t hesitate.

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  4. Rat

    Toronto

    1 review

    4.0

    1 review

    Dined 7 days ago

    1. Overall 4
    2. Food 4
    3. Service 5
    4. Ambience 4
    Dinner. Ordered the boar dumplings, duck, risotto, chocolate/cherry cake, a trappist beer, and a Spanish wine. I would order the same app again, was tasty. Mains were great but would likely switch it up next time. Would have preferred more cherry to chocolate ratio on the cake. But was fun to share. Server was nice and friendly. I knew exactly what perfume she was wearing: the Karma Scent from Lush. Loved it. Have you ever watched Slappy and the Stinkers? You have to watch it.

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  5. joe

    Pittsburgh

    12 reviews

    1.0

    12 reviews

    Dined 7 days ago

    1. Overall 1
    2. Food 4
    3. Service 4
    4. Ambience 1
    Undefined was advertised as wheelchair accessible. The only thing accessible was the front entrance. Inside the tables are all high tops. There aren’t many, but they’re all high tops. That was a little disappointing for me. Had I known I would not have chose undefined.

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  6. Jordan

    Toronto

    17 reviews

    5.0

    17 reviews

    Dined on 7 February 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great bartenders, friendly staff, and amazing food!

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  7. B.Matt

    Toronto

    2 reviews

    5.0

    2 reviews

    Dined on 2 February 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Everything was fantastic and I would definitely recommend this place to anyone.

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  8. Dottie

    New York City

    10 reviews

    5.0

    10 reviews

    Dined on 2 February 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We went to Undefined for brunch and we were delighted. We started with the Salted Espresso Caramel Biscuit Board and it did not disappoint! The food was delicious and it was a great place to chat and catch up over brunch.

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  9. Ashley

    Toronto

    5 reviews

    5.0

    5 reviews

    Dined on 26 January 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    As per usual, the customer service was exceptional! This was our second visit, and we had the pleasure of being served again by Hannah, who always goes above and beyond with her service! Our food was prepared perfectly to order, and the music is always a vibe! Highly recommend!

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  10. Jay

    VIP

    Toronto

    4 reviews

    5.0

    4 reviews

    Dined on 25 January 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Service / food and ambience was terrific. Looking for to going back

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FAQs

Undefined is rated 4.7 stars by 812 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 booking

2 people
19:00
Booked 7 times today
Experiences are available.
Google Map for Undefined

35 King William St, Hamilton, ON L8R 1A1

Dining areas

Additional information

  • Cross Street
    James Street North & King William
  • Area
    Hamilton
  • Hours of Operation
    Brunch Sat, Sun 10:00–15:00 Lunch Wed–Fri 11:30–16:00 Dinner Daily 16:00–22:00 Bar Fri, Sat 22:00–00:00
  • 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
  • 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.

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