Reasonable and Unsupportable

Opposite meaning words

Reasonable adjective - According to the rules of logic.

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Unsupportable is an antonym for reasonable.

Unsupportable adjective - More than can be put up with.

Usage example: these high taxes are just unsupportable

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Reasonable is an antonym for unsupportable.

Cite this Source

Unsupportable and Reasonable. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/reasonable/unsupportable

Reasonable & Unsupportable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/reasonable/unsupportable>.

Unsupportable or Reasonable. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/reasonable/unsupportable.

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