Inconceivable and Reasonable

Opposite meaning words

Inconceivable adjective - Too extraordinary or improbable to believe.

Usage example: the formerly inconceivable idea that humans could land on the moon

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Reasonable is an antonym for inconceivable in topics: unimaginable, belief.

Nearby Word: inconceivability

Reasonable adjective - According to the rules of logic.

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Inconceivable is an antonym for reasonable.

Cite this Source

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

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

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

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