Definitions for plausibly
Random House Webster's College Dictionary
plau•si•bleˈplɔ zə bəl(adj.)
having an appearance of truth or reason; credible; believable:
a plausible excuse.
well-spoken and apparently worthy of confidence:
a plausible commentator.
Origin of plausible:
1535–45; < L plausibilis deserving applause <plausus (ptp. of plaudere to applaud )
credibly, believably, plausibly, probably(adverb)
easy to believe on the basis of available evidence
"he talked plausibly before the committee"; "he will probably win the election"
In a plausible manner.
She lied plausibly, but the police suspected her anyway.
Not falsifiably, based on available facts and general knowledge.
Plausibly, she said she'd been working at the time.
in a plausible manner