plausible adj. 1. Seemingly or apparently valid, likely, or acceptable; credible: a plausible excuse. 2. Giving a deceiving impression of truth, acceptability, or reliability; specious: the plausible talk of a crafty salesperson. [Latin plausibilis, deserving applause.] story n., pl. -ries. 1. An account or recital of an event or a series of events, either true or fictitious. . . . 9. A lie. [American Heritage Dictionary, 3e]