forcefulness

1 the capacity to persuade the forcefulness of his argument is indisputable Synonyms authority, conclusiveness, convincingness, effectiveness, force, cogency, persuasion, persuasiveness, suasivenessRelated Words impact, might, power, punch, strength, weight; believability, credibility, soundness, validity; authoritativeness, definitiveness; influence, sway; appeal, seductivenessNear Antonyms invalidity, shakiness, unsoundness; feebleness, powerlessness, weaknessAntonyms inconclusiveness, ineffectiveness, ineffectuality, ineffectualness

2 the quality of an utterance that provokes interest and produces an effect delivered the punch line with appropriate forcefulness Synonyms cogency, effectiveness, force, punch, impact, pointRelated Words payoff; importance, significance; appeal, attraction, charm, fascination

3 the quality or state of being forceful (as in expression) her clenched teeth only added to the forcefulness of her words Synonyms aggressiveness, assertiveness, emphasis, fierceness, vehemence, intenseness, intensity, vigorousness, violenceRelated Words potency, power, strength; eloquence; ardency, ardor, fervency, fervidness, fervor, insistence, passion, warmth; stridency, vociferousness; absoluteness, clearness, directness, incision, incisiveness, plainness, straightforwardness, vividnessNear Antonyms ambiguity, equivocation; delicacy, lightness, subtletyAntonyms feebleness, mildness, weakness