1. (a.) Able to influence or logically convince; as, a cogent argument\.

2. (p. a.) Having the power to compel conviction or move the will; constraining; conclusive; forcible; powerful; not easily resisted.

acute admissible advantageous apperceptive appercipient argute armipotent astute auspicious authoritative beneficial benevolent binding bon bonny braw bueno capital commendable compelling consequential consistent constraining convincing credible discerning dynamic effective elegant energetic estimable excellent expedient fair famous farseeing farsighted favorable fine forceful forcible foreseeing foresighted forethoughted forethoughtful good goodly grand healthy helpful high-potency high-powered high-pressure high-tension in force in power incisive inducing influential irresistible just justifiable justified kind laudable lawful legal legitimate logical longheaded longsighted meaningful mighty mighty in battle momentous nice noble operative penetrating perceptive percipient perspicacious perspicuous persuasive piercing plausible pleasant potent powerful prepotent profitable provident puissant rational reasonable regal royal ruling sagacious sane satisfactory satisfying self-consistent sensible significant skillful solid sound splendid striking strong substantial sufficient telling trenchant understanding useful valid very good vigorous virtuous vital weighty well-argued well-founded well-grounded wholesome