Akademik

plausibly
adverb
easy to believe on the basis of available evidence
-

he talked plausibly before the committee

-

he will probably win the election

Syn: ↑credibly, ↑believably, ↑probably
Ant: ↑incredibly (for: ↑credibly)
Derived from adjective: ↑probable (for: ↑probably), ↑plausible, ↑believable (for: ↑believably), ↑credible (for: ↑credibly)

Useful english dictionary. 2012.