|Origin:||plausibilis 'worth applauding', from plaudere; PLAUDITS|
reasonable and likely to be true or successful [≠ implausible]:
His story certainly sounds plausible.
a plausible explanation
someone who is plausible is good at talking in a way that sounds reasonable and truthful, although they may in fact be lying:
a plausible liar
—plausibility noun [uncountable]