Synonyms for improbable in English

Antonyms

• probable
• likely
• possible
• plausible
• believable
• credible
• certain
• realizable
• reasonable
• ostensible
• doable
• imaginable
• convincing
• conceivable
• apparent
• attainable
• very likely
• expected
• likely to occur
• susceptible
• passable
• fair
• acceptable
• probably
• presumptive
• probable existence
• stipulative
• presumable
• Bayesian
• ostensive
• air of reality
• odds-on
• probabilistic
• likelier
• surmisable
• ...