Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Thesaurus

heavy-duty

adjective

Synonyms and Antonyms of heavy-duty

1 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 of heavy-duty

acute, almighty, blistering, deep, dreadful, excruciating, explosive, exquisite, fearful, fearsome, ferocious, fierce, frightful, furious, ghastly, hard, heavy, hellacious, intense, intensive, keen, profound, terrible, vehement, vicious, violent
Words Related to heavy-duty

accentuated, aggravated, concentrated, deepened

emphasized, enhanced, heightened, intensified, magnified

stressed

exhaustive, thorough

harsh, rigorous, severe
Near Antonyms of heavy-duty

feeble, weak

shallow, superficial

moderated, qualified

alleviated, eased, lightened, toned (down)

abated, decreased, diminished, lessened, reduced, subdued
Antonyms of heavy-duty

light, moderate, soft

2 having great power or influence

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

heavy, important, influential, mighty, potent, powerful, puissant, significant, strong
Words Related to heavy-duty

high-level, senior, top

able, capable, competent, effective, efficient

authoritarian, autocratic (also autocratical), despotic, dictatorial, magisterial, tyrannical (also tyrannic)

celebrated, distinguished, dominant, eminent, famed, famous, great, illustrious, noble, notable, noteworthy, notorious, outstanding, preeminent, prestigious, prominent, renowned

dynamic, energetic, forceful, high-powered, robust, vigorous
Near Antonyms of heavy-duty

feeble, flimsy, frail, infirm

anonymous, nameless, obscure, uncelebrated, unknown

incapable, incompetent, ineffective, inept, inexpert, unfit, unqualified, unskilled, unskillful
Antonyms of heavy-duty

helpless, impotent, insignificant, little, powerless, unimportant, weak

Learn More about heavy-duty

  1. See words that rhyme with heavy-duty Dictionary: Definition of heavy-duty Spanish Central: Translation of heavy-duty

Seen and Heard

What made you want to look up heavy-duty? Please tell us where you read or heard it (including the quote, if possible).

show comments hide comments

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games