I disagree with the dictionary definition ("reasonable or probable") that others have quoted. It is wrong. One danger of the internet is that it gets everyone looking at the same thing, which is unfortunate if the thing they are looking at is wrong. "Plausable" does not mean "probable". Reasonable yes, but probable no. A plausible explanation is one that that might very well be correct. It is possibly correct. There is room for it to be correct. However, it need not be probable or likely. In fact, it can be unlikely. Here is the Merriam-Webster definition, which is much better. Notice that under this definition, a plausible explanation can be specious, nearly the opposite of probable: 1 superficially fair, reasonable, or valuable but often specious a plausible pretext 2 : superficially pleasing or persuasive a swindler … , then a quack, then a smooth, plausible gentleman — R. W. Emerson 3 : appearing worthy of belief the argument was both powerful and plausible

A statement that seems reasonable or probable.

Possibly true, based on the available information/ evidence...

Here is your answer from the Collins Dictionary: plausible adjective UK /ˈplɔː.zə.bəl/ US /ˈplɑː.zə.bəl/ C2 seeming likely to be true, or able to be believed: a plausible explanation/excuse disapproving A plausible person appears to be honest and telling the truth, even if they are not: a plausible salesman SMART Vocabulary: related words and phrases Believable believableconvincingconvincinglycrediblecrediblyplausibilityplausiblyshallowshallowlytrue to lifeunconvincingly Related words plausibilityplausibly (Definition of plausible from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press) plausible | AMERICAN DICTIONARY plausible adjective US /ˈplɔ·zə·bəl/ possibly true; able to be believed: a plausible excuse/explanation (Definition of plausible from the Cambridge Academic Content Dictionary © Cambridge University Press) Translations of plausible in Chinese (Traditional) 貌似真實（或可信）的, 花言巧語的，舌燦蓮花的… See more in Chinese (Simplified) 貌似真实（或可信）的, 花言巧语的，巧舌如簧的… See more in Spanish verosímil, plausible, admisible… See more in Portuguese plausível, conversador… See more in more languages Need a translator? Get a quick, free translation! Translator tool What is the pronunciation of plausible? Browse platypus platysma plaudit plausibility plausible plausibly play play (it) safe idiom play (merry) hell with sth idi

Google can easily answer your question. plau·si·ble /ˈplôzəb(ə)l/ adjective (of an argument or statement) seeming reasonable or probable. "a plausible explanation" Similar: credible reasonable believable likely feasible* my preferred synonym probable tenable possible conceivable imaginable convincing persuasive cogent sound rational logical acceptable thinkable smooth-talking smooth-tongued smooth glib specious verisimilar colorable Opposite: unlikely improbable (of a person) skilled at producing persuasive arguments, especially ones intended to deceive. "a plausible liar"