1. (of an argument or statement) seeming reasonable or probable: "a plausible explanation"
▪ (of a person) skilled at producing persuasive arguments, especially ones intended to deceive:"a plausible liar"
Word Originmid 16th century (also in the sense ‘deserving applause or approval’): from Latin plausibilis, from plaus- ‘applauded’, from the verb plaudere.