Improbable and Impossible

Improbable

Improbable adjective - Not likely to be true or to occur.
Usage example: it seems improbable that the two writers never met since they traveled in the same social circles

Impossible is a synonym for improbable. In some cases you can use "Impossible" instead an adjective "Improbable".

Nearby Words: improbability, improbably

Impossible

Impossible adjective - Incapable of being solved or accomplished.
Usage example: fitting everything in my backpack seemed an impossible task

Improbable is a synonym for impossible. You can use "Improbable" instead an adjective "Impossible".

Nearby Words: impossibility, impossibly
Cite this Source
Impossible and Improbable. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/improbable/impossible
Improbable & Impossible. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/improbable/impossible>.
Impossible or Improbable. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/improbable/impossible.
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