puissant

having great power or influence one of the nation's most respected and puissant advocates for the rights of minorities Synonyms heavy, heavy-duty, influential, mighty, potent, powerful, important, significant, strongRelated Words 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, vigorousNear Antonyms feeble, flimsy, frail, infirm; anonymous, nameless, obscure, uncelebrated, unknown; incapable, incompetent, ineffective, inept, inexpert, unfit, unqualified, unskilled, unskillfulAntonyms helpless, impotent, insignificant, little, powerless, unimportant, weak