27 unlikely synonyms include improbable, not likely, doubtful, dubious, unexpected, beyond belief, implausible, questionable, unconvincing, and remote. Unlikely is an adjective, and its antonyms are likely, certain, and believable. Here are some additional synonyms for "unlikely" with example sentences.
27 other ways to say unlikely.
He’s an unlikely hero.
It is unlikely to rain today.
She gave an unlikely explanation.
That outcome seems unlikely.