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Added 6 October 2026

impossible

/ɪmˈpɒs.ɪ.bəl/ adjective

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

Not possible; not able to be done or happen.
It is difficult, if not impossible, to memorize 20,000 consecutive numbers.
Very difficult to deal with.
You never listen to a word I say – you're impossible!
imaginary
impossible quantities, or imaginary numbers

noun

An impossibility.
A skateboard trick consisting of a backflip performed in midair.

Origin

From Middle English impossible, equivalent to im- + possible.

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

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