Added 9 October 2026 plausibly adverb Categories: Describing WordsRare Words adverb ! Definition from WordNet 3.1, Princeton University. More about plausibly at Wordnik → Where our words come from → Easy to believe on the basis of available evidence. he talked plausibly before the committee Related Words: believablycrediblyprobablypresumablyconvincinglyreasonablypersuasivelylikelyforcefullyunplausiblyimplausiblyfeasibly Back to today's word