Meaning of “plausible” - Learner’s Dictionary

plausible

adjective uk us /ˈplɔːzɪbl/

If something that someone says or writes is plausible, it could be true:

a plausible excuse/explanation
→ Opposite implausible
plausibility uk us /ˌplɔːzɪˈbɪləti/ noun [ U ]

whether or not something is plausible

(Definition of “plausible” from the Cambridge Learner’s Dictionary © Cambridge University Press)