Definitions

heavy-duty

[hev-ee-doo-tee, -dyoo-] / ˈhɛv iˈdu ti, -ˈdyu- /

ADJECTIVE

big

Synonyms

STRONGEST

considerable leading main popular powerful serious significant substantial valuable

WEAK

big-league big-time consequential eminent heavyweight influential major-league material meaningful momentous paramount prime principal prominent super supercolossal weighty

Antonyms

STRONGEST

insignificant little minor small subordinate trivial unimportant

WEAK

adolescent baby babyish blah bland dull humble infant infantile itsy juvenile selfish shy tiny unconfident ungenerous ungiving

ADJECTIVE

big

Synonyms

STRONGEST

colossal considerable enormous fat full gigantic hefty huge immense massive sizable substantial tremendous vast

WEAK

a whale of a ample awash brimming bulky burly capacious chock-full commodious copious crowded extensive heavyweight hulking humongous husky jumbo mammoth mondo monster oversize packed ponderous prodigious roomy spacious strapping stuffed supercolossal thundering voluminous walloping whopper whopping

Antonyms

STRONGEST

impoverished inconsiderable insignificant little miniature minute poor slight small teeny thin tiny unimportant

WEAK

adolescent baby babyish blah bland dull humble infant infantile itsy juvenile selfish shy unconfident ungenerous ungiving

ADJECTIVE

large-scale

Synonyms

STRONGEST

extensive huge large massive sizable substantial

WEAK

a whale of a ample awash brimming bulky bull burly capacious chock-full colossal commodious considerable copious crowded enormous fat full gigantic good great healthy heavyweight hefty hulking humongous husky immense jumbo mammoth mondo monster oversize packed ponderous prodigious roomy spacious strapping stuffed supercolossal thundering tremendous vast voluminous walloping whopper whopping

Antonyms

STRONGEST

little miniature short small tiny

ADJECTIVE

puissant

Synonyms

WEAK

able able-bodied active athletic big capable durable enduring energetic firm fixed forceful forcible hale hard as nails hardy hearty heavy in fine feather mighty muscular potent powerful reinforced robust rugged secure sinewy solid sound stable stalwart stark staunch steady stout strapping sturdy substantial tenacious tough unyielding vigorous well-built well-founded well-made

ADJECTIVE

strong

Synonyms

STRONGEST

durable secure solid stable sturdy unbreakable well-made

WEAK

firm hard reinforced tough

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.

Local media say the fibreglass and iron structure has been secured with heavy-duty nylon ropes, while barricades have been erected to keep people and traffic clear of the site.

From BBC • May 27, 2026

CEO Jennifer Rumsey’s company is no stranger to boom-bust business cycles, and she says it can navigate the swings in AI demand, partly from its experience selling heavy-duty truck engines.

From Barron's • May 21, 2026

Volvo Group North America has agreed to pay nearly $197 million to resolve allegations from California regulators that company’s heavy-duty truck engines violated California emissions standards and certification requirements.

From Los Angeles Times • May 19, 2026

In addition to announcing the energy deal, Ford on Monday said it would introduce a new heavy-duty pickup truck and an all-electric van in Europe.

From MarketWatch • May 18, 2026

He pointed to someone in a glassed-in room taking samples out of a petri dish with a pipette and putting it under a large, heavy-duty microscope hooked up to a computer monitor.

From "Boy 2.0" by Tracey Baptiste

heavy-duty

Example Sentences

Related Words