Undefined

Name: Undefined
Address: 35 King William St, Hamilton, ON, Canada, L8R 1A1
Telephone: (905) 393-8343
Price range: CAN$31 to CAN$50
Rating: 4.7

4.7

817 Reviews

CAN$31 to CAN$50

Bistro

Make a reservation

2 people

Feb 26, 2025

7:00 p.m.

Booked 12 times today

Experiences are available.

Good for special occasions
Great for creative cocktails
Innovative

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 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
Website
http://www.eatundefined.com/
Payment Options
AMEX, Mastercard, Visa
Dress code
Business Casual

Location
35 King William St, Hamilton, ON L8R 1A1
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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Experiences

Brunch UnDefined!
Jan 31, 2025 - Apr 30, 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

Popular dishes

WHIPPED GOAT CHEESE
Whipped Goat’s Milk Ricotta | Candied Dates | Arbequina Olive Oil Cracked Pepper | Grilled Sourdough
CRUSTED CALAMARI
Anson Mills Cornmeal | Sichuan Chili Oil | Fennel Pollen | Pickled Anaheim Charred Lemon | Smoked Pepper Mayo
WILD BOAR DUMPLINGS
Manitoban Wild Boar Confit | Pan Seared | Crispy Hand-Folded Dumplings Black Garlic | Citrus Ponzu | “XO” Sauce
MASALA FRITES
Triple-Cooked Burbank Frites | Masala | Curried Aioli | Sumac Raita
SWEET POTATO RACLETTE
Roasted Yams | Oka Raclette | Crème Fraîche | Black Pepper Honey

SALADS

ADD » Grilled Chicken - [8] » Hanger Steak - [12] » Gulf Shrimp - [14]

NIAGARA APPLE “WALDORF SALAD”
Local Apples | Candied Pecans | Shaved Celery | Hydro Greens | Dried Cranberry Walnut Vinaigrette
AVOCADO & CANDIED BACON CHOP
Baby Greens | Grape Tomato | Avocado | Crisp Bacon | Green Goddess Dressing | Boiled Egg
BARTLETT PEAR & KALE SALAD
Crushed Kale | Shaved Carrot | Niagara Pear | Fermented Chili Vinaigrette Olive Oil Breadcrumb | Grana Padano

PLATES

ICELANDIC COD & CHIPS
Merit Stout Tempura | Triple-Cooked Chips | Smashed English Peas Malt Remoulade | Curry Mayo | Lemon
HEIRLOOM CARROT RISOTTO
Toasted Arborio Rice | Brown Butter Carrots | Chlorophyll | Carrot Butter Reggiano Broth | Frico
HANGER STEAK & TRUFFLE FRITES
7 Oz Hanger Prime Steak | Truffle Frites | Gremolata | Veal Reduction

SANDWICHES

CHOICE OF SIDE: » Triple-Cooke Frites » Green Salad

CRISPY PORK BELLY “CUBANO”
24-Hour Crispy Mojo Pork Belly | Smoked Carver Ham | House Pickles Mustard Aioli | Emmental Cheese | Pressed Cuban Bread
FRENCH ONION GRILLED CHEESE
Raclette & Gruyere Cheese | Balsamic Onion Jam | Grilled Brandied Onions | Dear Grain Sourdough
THE UD BURGER
Dry Aged Chuck & Brisket | Served Medium | Red Onion Jam | Québec Oka House Dills | Secret Sauce | Brioche
CHICKEN, AVOCADO & BACON SANDWICH
Grain Fed Chicken Breast | Avocado | Candied Bacon | Baby Arugula Black Garlic Mayo | D.G. Bun | » Choice of Crispy or Grilled

What 817 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

Noise • Moderate

Loved For

Toronto / Ontario
Bistro

Review summary

AI-generated from verified diner reviews

Undefined offers a delightful dining experience with "great service" and "exceptional food." Guests rave about the "wild boar dumplings" and "scallop risotto," while the cocktails are "creative and delicious." Despite some accessibility concerns and occasional slow service, the "attentive staff" and "inviting ambiance" make it a must-visit.

817 Reviews

OT
OpenTable Diner
Toronto
1 review
3.0
1 review
Dined 3 days ago
1. Overall 3
2. Food 2
3. Service 4
4. Ambience 4
Disappointed based on previous experiences. Overcooked entries without even an acknowledgment was unexpected for a $200+ receipt.
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S
Steven
VIP
Toronto
9 reviews
5.0
9 reviews
Dined 4 days ago
1. Overall 5
2. Food 5
3. Service 5
4. Ambience 5
Great experience. Great service, waitress was super attentive. The apps are great sized portions and easily shareable. Highly recommend the duck. Will definitely go back.
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D
Destiny
Toronto
1 review
5.0
1 review
Dined 4 days ago
1. Overall 5
2. Food 5
3. Service 5
4. Ambience 5
Erika was great. Food was delicious. We had such a great experience
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K
Kristy
Orlando
19 reviews
5.0
19 reviews
Dined 6 days ago
1. Overall 5
2. Food 5
3. Service 5
4. Ambience 5
Fabulous! Start to finish! Wish I could’ve tried it all
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RM
RichardM
Toronto
4 reviews
5.0
4 reviews
Dined 6 days ago
1. Overall 5
2. Food 5
3. Service 5
4. Ambience 5
We live going to Undefined food is consistently outstanding with great drinks
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OT
OpenTable Diner
Toronto
1 review
5.0
1 review
Dined on February 15, 2025
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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T
Terri
Toronto
1 review
5.0
1 review
Dined on February 14, 2025
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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K
Kenlyn
Toronto
10 reviews
5.0
10 reviews
Dined on February 11, 2025
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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R
Rat
Toronto
1 review
4.0
1 review
Dined on February 9, 2025
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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j
joe
Pittsburgh
12 reviews
1.0
12 reviews
Dined on February 9, 2025
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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FAQs

Undefined is rated 4.7 stars by 817 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.