Improbable Meaning

/ɪmˈpɹɑbəbl̩/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

Listen pronunciation

adjNot likely to be true.

adjNot likely to happen.

Your explanation won't wash; it's too improbable to be true.
The statement sounds improbable.
CEFR Practice Quiz
It is highly ____ that the shy boy will win the singing competition because he never practices.
CEFR Practice Quiz (Alternate)
It seems highly ____ that it will rain today, given the clear blue sky and the bright sun.

Borrowed from Latin improbābilis. By surface analysis, im- + probable.

"Improbabile, that cannot be prooued, improbable." — 1598, John Florio, “Improbabile”, in A Worlde of Words, or Most Copious, and Exact Dictionarie in Italian and English, […], London: […] Arnold Hatfield for Edw[ard] Blount, →OCLC, page 171, column 1:
"Nay, if he be of a proud humour, […] he will not Bate an Ace of abſolute certainty, but however doubtful or improbable the thing is, coming f[r]om him it muſt go for an indiſputable truth." — 1674, [Richard Allestree], “Of Positiveness”, in The Government of the Tongue. […], Oxford, Oxfordshire: At the Theater, →OCLC, page 197:
"It is highly improbable that the drafter of the notice ever visualised the form that heavy vehicles of the future would take, but the comprehensive wording still covers modern types." — 1955 December, “Notes and News: An Old Midland Railway Bridge Notice”, in Railway Magazine, page 877:

Explore More B2 Vocabulary Words

CEFR Practice Quiz
It is highly ____ that the shy boy will win the singing competition because he never practices.
CEFR Practice Quiz (Alternate)
It seems highly ____ that it will rain today, given the clear blue sky and the bright sun.

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