Synonyms of heavy-duty

heavy-duty

adjective

ˈhe-vē-ˈdü-tē 

1

as in intensive

extreme in degree, power, or effect

some heavy-duty lobbying on the part of the president was necessary in order to get the bill passed

Synonyms & Similar Words

• intensive
• intense
• heavy
• fierce
• deep
• ferocious
• terrible
• furious
• violent
• acute
• vicious
• profound
• explosive
• exquisite
• blistering
• fearsome
• dreadful
• fearful
• vehement
• ghastly
• hard
• excruciating
• hellacious
• keen
• frightful
• intensified
• almighty
• concentrated
• harsh
• enhanced
• heightened
• aggravated
• severe
• exhaustive
• thorough
• rigorous
• magnified
• accentuated
• stressed
• deepened
• emphasized

Antonyms & Near Antonyms

• light
• soft
• moderate
• weak
• feeble
• shallow
• superficial
• qualified
• decreased
• moderated
• eased
• toned (down)
• reduced
• subdued
• diminished
• lightened
• alleviated
• lessened
• abated

2

as in powerful

having great power or influence

a group of heavy-duty politicians and other notables attended the gala

Synonyms & Similar Words

• powerful
• influential
• significant
• strong
• important
• potent
• heavy
• mighty
• prominent
• senior
• top
• puissant
• high-level
• capable
• efficient
• effective
• outstanding
• robust
• distinguished
• famous
• competent
• great
• dominant
• celebrated
• able
• renowned
• notorious
• notable
• prestigious
• vigorous
• dynamic
• famed
• illustrious
• authoritarian
• eminent
• high-powered
• noteworthy
• autocratic
• tyrannical
• despotic
• energetic
• magisterial
• forceful
• dictatorial
• noble
• preeminent

Antonyms & Near Antonyms

• little
• weak
• unimportant
• insignificant
• powerless
• helpless
• flimsy
• impotent
• feeble
• frail
• infirm
• obscure
• anonymous
• unknown
• nameless
• ineffective
• incapable
• unskilled
• incompetent
• unqualified
• unfit
• inept
• uncelebrated
• inexpert
• unskillful

Example Sentences

Recent Examples of heavy-duty

Travelers tend to walk everywhere in Europe, so heavy-duty jeans like Wranglers or bulky Levi’s won’t cut it. — Katie Jackson, Travel + Leisure, 16 Sep. 2026

Such gigs typically go to stand-ups or, at least, comic actors, but despite being known for her tenure on a heavy-duty cop drama, some of Hargitay’s earliest training was in comedy. — Jon Blistein, Rolling Stone, 15 Sep. 2026

Dry delicate fabrics on low heat and reserve high heat for sanitizing heavy-duty items. — Brandee Gruener, Southern Living, 15 Sep. 2026

If the name is any indication, CosRx’s serum sunscreen is incredibly lightweight despite its heavy-duty sun protection. — Kiana Murden, Vogue, 8 Sep. 2026