Definitions

hefty

[hef-tee] / ˈhɛf ti /

ADJECTIVE

big, bulky

Synonyms

STRONGEST

colossal fat heavy large massive robust sizable substantial tremendous weighty

WEAK

ample awkward beefy brawny burly cumbersome extensive forceful hulking husky large-scale major muscular ponderous powerful strapping strong sturdy thumping unwieldy vigorous

Antonyms

STRONGEST

easy impoverished inconsequential insignificant light little miniature poor slight small thin tiny trivial unimportant unsubstantial

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Canada maintains tariffs on American-made steel, aluminum and automobiles, in response to hefty U.S. duties on those foreign-made goods.

From The Wall Street Journal • Jun. 9, 2026

That lifted short-term Treasury bond yields to the highest levels of the year and reset Fed rate expectations sharply, with traders now pricing in hefty chances of a hike between now and December.

From Barron's • Jun. 8, 2026

They may need to consider hefty layouts on renewables and nuclear power to ensure steadier energy supplies ahead of any new disruption.

From The Wall Street Journal • Jun. 7, 2026

It also amounts to a hefty one-off tax burden.

From MarketWatch • Jun. 5, 2026

She had a broad, flat face with saggy earlobes that hung almost to her hefty shoulders.

From "Fablehaven" by Brandon Mull

Vocabulary lists containing hefty

The Omnivore's Dilemma

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The Wednesday Wars

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Hello, Universe

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!