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Added 9 October 2026

improbable

/ɪmˈpɹɑbəbl̩/ adjective

Latin root: improbābilis Wiktionary

adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about improbable at Wordnik → Where our words come from →

Not likely to be true.
It's highly improbable that aliens abducted you.
Not likely to happen.
Due to the loss of power, it is improbable that we will begin on time.

Origin

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

From Wiktionary, via Kaikki.org (CC BY-SA)

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