Reasonable and Undoable

Opposite meaning words

Reasonable adjective - According to the rules of logic.

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Undoable is an antonym for reasonable.

Undoable adjective - Incapable of being solved or accomplished.

Usage example: a combat mission of that type is not only undoable, it's foolish

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Reasonable is an antonym for undoable.

Cite this Source

Undoable and Reasonable. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/reasonable/undoable

Reasonable & Undoable. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/reasonable/undoable>.

Undoable or Reasonable. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/reasonable/undoable.

Google Ngram Viewer shows how "reasonable" and "undoable" have occurred on timeline