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

The rally at the Garden represents a bookend to the start of his improbable presidential campaign in 2015. —Seema Mehta, Los Angeles Times, 27 Oct. 2024

This week, the series asks us to accept the standard bevy of improbable situations, along with an insistence that Halloween is the most important holiday of the year. —Louis Peitzman, Vulture, 24 Oct. 2024

Hope is at an all-time high for Wolves fans after Ant led them on an improbable run to the Western Conference Finals last spring. —Rebecca Falconer, Axios, 23 Oct. 2024

Set in an age when the Targaryen line still holds the Iron Throne, and the memory of the last dragon has not yet passed from living memory, great destinies, powerful foes, and dangerous exploits all await these improbable and incomparable friends. —Anthony D'alessandro, Deadline, 4 Oct. 2024