heavy-duty

Synonyms

heavy, important, influential, mighty, potent, powerful, puissant, significant, strong;

Antonyms

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

Near Antonyms

anonymous, nameless, obscure, uncelebrated, unknown;

incapable, incompetent, ineffective, inept, inexpert, unfit, unqualified, unskilled, unskillful;

Related Words

high-level, senior, top;

able, capable, competent, effective, efficient;

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

dynamic, energetic, forceful, high-powered, robust, vigorous;