having an appearance of truth or reason; seemingly worthy of approval or acceptance; credible; believable: a plausible excuse; a plausible plot.
well-spoken and apparently, but often deceptively, worthy of confidence or trust: a plausible commentator.
Origin of plausible
First recorded in 1535–45; from Latin plausibilis “deserving applause,” equivalent to plaus(us) (past participle of plaudere “to applaud” + -ibilis adjective suffix; see origin at applaud, -ible
ANTONYMS FOR plausible
1 honest, sincere.
SEE ANTONYMS FOR plausible ON THESAURUS.COM
synonym study for plausible
1. Plausible,specious describe that which has the appearance of truth but might be deceptive. The person or thing that is plausible strikes the superficial judgment favorably; it may or may not be true: a plausible argument (one that cannot be verified or believed in entirely). Specious definitely implies deceit or falsehood; the surface appearances are quite different from what is beneath: a specious pretense of honesty; a specious argument (one deliberately deceptive, probably for selfish or evil purposes).