implausible
not seeming reasonable or believable
Roots
- -able / -ible: able to be, fit to be, or worthy of
- im- / in- (not): not or without
- plaud / plaus: clap, applaud, approve, or seem acceptable
Other words with the plaud / plaus root
- applaud: to clap or express approval
- applause: clapping or public approval
- plaudit: praise or enthusiastic approval
- plausibility: quality of seeming reasonable or believable
- plausible: seeming reasonable or believable
Implausible is not acceptable to belief: the mind refuses to applaud it.
The excuse was implausible because three people had seen him at the cafe.