implausible

[ im-plaw-zuh-buhl ]
/ ɪmˈplɔ zə bəl /

adjective

not plausible; not having the appearance of truth or credibility: an implausible alibi.

Origin of implausible

First recorded in 1595–1605; im-2 + plausible

OTHER WORDS FROM implausible

im·plau·si·bil·i·ty, im·plau·si·ble·ness, noun im·plau·si·bly, adverb

British Dictionary definitions for implausibility

implausible
/ (ɪmˈplɔːzəbəl) /

adjective

not plausible; provoking disbelief; unlikely

Derived forms of implausible

implausibility or implausibleness, noun implausibly, adverb