unplausible

plau·si·ble

U u

Definitions of unplausible word

adjective unplausible having an appearance of truth or reason; seemingly worthy of approval or acceptance; credible; believable: a plausible excuse; a plausible plot. 1
adjective unplausible well-spoken and apparently, but often deceptively, worthy of confidence or trust: a plausible commentator. 1
adjective unplausible implausible 0
adjective unplausible Implausible. 0

before 1535

One of the 29% oldest English words

1535-45; < Latin plausibilis deserving applause, equivalent to plaus(us) (past participle of plaudere to applaud) + -ibilis -ible

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 86% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

This diagram is provided by Google Ngram Viewer