Synonyms of improbable

improbable

adjective

(ˌ)im-ˈprä-bə-bəl 

as in unlikely

not likely to be true or to occur

it seems improbable that the two writers never met since they traveled in the same social circles

Synonyms & Similar Words

• unlikely
• doubtful
• questionable
• dubious
• odd
• impossible
• far-fetched
• flimsy
• bizarre
• implausible
• incredible
• inconceivable
• unapt
• unbelievable
• fantastical
• unthinkable
• unimaginable
• ridiculous
• absurd
• fantastic
• outlandish
• foolish
• nonsensical
• preposterous
• unreal
• insane
• crazy
• wild
• remote
• slight
• outside

Antonyms & Near Antonyms

• probable
• likely
• plausible
• possible
• conceivable
• potential
• credible
• earthly
• believable
• imaginable
• liable

Examples Sentences

Recent Examples of improbable

Sameness, a major feature of Soviet urban design, is an important theme in the movie and a key factor in making its improbable plot work. —Valeriya Safronova, New York Times, 31 Dec. 2024

Their improbable run ended with a 73–58 loss to eventual national champion Florida. —Newsweek, 26 Dec. 2024

With her short legs and long medleys, crazed first lady Mary Todd Lincoln has become an improbable pop culture sensation, thanks to the deranged genius of playwright/actor Cole Escola. —USA TODAY, 26 Dec. 2024

If Fishman’s math holds up, ESPN could be looking at a 20% boost in overall revenue in just seven years’ time—a feat that likely would be wholly improbable if the sports unit were to maintain the status quo or promote the streaming tyro at the expense of the foundational TV network. —Anthony Crupi, Sportico.com, 18 Dec. 2024