believably

/bɪˈliːvəbli/
adverb
  1. In a way that can be believed; convincingly.
    • The actor believably portrayed a nervous first-time pilot.
    • The story was believably written, with realistic details.
    • She lied so believably that everyone trusted her.
Antonyms
What does "believably" mean? | whatsthatwordmean | whatsthatwordmean