HEFTY Synonyms: 221 Similar and Opposite Words

hefty

adjective

ˈhef-tē

Definition of hefty

as in massive

having great weight that's a pretty hefty book bag for a tiny person like you

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

as in large

of a size greater than average of its kind received a hefty donation from the local business association for holiday lights along Main Street

Synonyms & Similar Words

Antonyms & Near Antonyms

as in powerful

strongly and heavily built hefty since childhood, he became a champion wrestler

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of hefty The statement-making style is capable of propping up heftier carat weights while standing out from the sea of predictable picks. — Stacia Datskovska, Footwear News, 19 Oct. 2026 Kisner claimed the only reason McIlroy was playing in India was to collect a hefty appearance fee. — Mark Harris Outkick, FOXNews.com, 18 Oct. 2026 Despite the hefty reservation payments, the Roadster is unlikely to become a major revenue source for Tesla. — Bilin Lin, Fortune, 17 Oct. 2026 But, being the second spin-off from a show in the fourth phase in Marvel’s increasingly complex universe of characters (many of whom were vanquished at the end of phase three), there’s a hefty backstory to contend with. — Alex Ritman, Variety, 16 Oct. 2026 See All Example Sentences for hefty

Recent Examples of Synonyms for hefty

Adjective

Toronto reacquired Leonard in an offseason trade after a salary cap-circumvention scandal that led to massive sanctions against the Clippers.

— CBS News, CBS News, 22 Oct. 2026
Pearson and his brother KeShaun are the two most prominent local opponents of Elon Musk’s xAI, a subsidiary of which has developed a massive data-center complex, provocatively named Colossus, in and around South Memphis.

— Keeanga-Yamahtta Taylor, New Yorker, 22 Oct. 2026

Definition of massive

Adjective

In Lyon, France's third-largest city where about 20,000 protesters joined the march, a fire broke out inside a tourist office.

— SYLVIE CORBET, Arkansas Online, 18 Oct. 2026
El-Sayed’s primary challenger, Haley Stevens, who of course lost to El-Sayed, did carry Michael counties with large Black populations.

— NBC news, NBC news, 18 Oct. 2026

Definition of large

Adjective

Pacific Fusion also aims to create a fusion reaction an order of magnitude more powerful than those at the national lab facilities.

— Sarah Scoles, Scientific American, 20 Oct. 2026
Zuckerberg and Wang want Muse Wonder and the more powerful Muse Wonder Full to drive Muse, Meta’s personal AI agent, which can act on people’s behalf.

— Molly A. Wallace, Fortune, 20 Oct. 2026

Definition of powerful

Adjective

For their collaborative full-length debut, Eris Drew and Octo Octa hunkered down in their New Hampshire cabin to craft a celebratory, sample-heavy tribute to the maximalist dance music of yore.

— Andrew Ryce, Pitchfork, 22 Oct. 2026
Bakkila skipped the brand’s optional white glove delivery, and her king-size mattress arrived in two heavy boxes with the latex layers packaged separately inside a zippered cover for assembly at home.

— Nashia Baker, Architectural Digest, 21 Oct. 2026

Definition of heavy

Adjective

Zygielbaum was surprised however that the DOJ reached out only to him, and not the Republican clerk in neighboring Weld County, which also houses a sizable portion of that same congressional district.

— Miles Parks, NPR, 22 Oct. 2026
But current attempts to drive home that message are being rejected by a sizable and growing part of the population.

— Nicholas Florko, STAT, 21 Oct. 2026

Definition of sizable

Adjective

China is no stranger to powerful quakes, especially in southwestern parts of the country where the Eurasian tectonic plate meets the Indian plate, a dramatic collision that creates the mighty Himalayas and the vast Tibetan plateau.

— Sophie Tanno, CNN Money, 22 Oct. 2026
On the east bank of the mighty Nile is Luxor, the great city of the living, with its massive temple complexes of Karnak and Luxor.

— Jamie Carter, Space.com, 22 Oct. 2026

Definition of mighty

Adjective

For a complicated model with multiple color changes, the waste can become substantial.

— New Atlas, New Atlas, 17 Oct. 2026
Its existing capabilities provide a starting point for the conversion, although the transport configuration cannot perform the new mission without substantial modifications.

— Aamir Khollam, Interesting Engineering, 17 Oct. 2026

Definition of substantial

Adjective

Well, now meet its beefier cousin, the 2028 Mercedes-AMG GT SUV, an equally powerful, ultra-fast-charging electric people-hauler.

— Andrew J. Hawkins, The Verge, 17 Oct. 2026
Steaks — particularly ribeye, sirloin and strip — brown faster with another layer of beefy flavor.

— Lauren Jarvis-Gibson, Charlotte Observer, 12 Oct. 2026

Definition of beefy

Browse Nearby Words

hefts

hefty

hegemonies

See all Nearby Words

Cite this Entry

Style

“Hefty.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hefty. Accessed 25 Oct. 2026.

Copy Citation

Synonyms of hefty

adjective

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

emissary

Popular in Grammar & Usage

Merriam-Webster’s Great Big List of Words You Love to Hate

'Can' vs. 'May'

'Affect' vs. 'Effect'

More Commonly Mispronounced Words

Is it 'nerve-racking' or 'nerve-wracking'?

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

The Words of the Week - Oct. 23

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

Merriam-Webster’s Great Big List of Words You Love to Hate

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes