Credible and Unreasonable

Opposite meaning words

Credible adjective - Worthy of being accepted as true or reasonable.

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Unreasonable is an antonym for credible in believable topic.

Unreasonable adjective - Having no basis in reason or fact.

Usage example: an unreasonable assumption

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Credible is an antonym for unreasonable.

Cite this Source

Unreasonable and Credible. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/credible/unreasonable

Credible & Unreasonable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/credible/unreasonable>.

Unreasonable or Credible. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/credible/unreasonable.

Google Ngram Viewer shows how "credible" and "unreasonable" have occurred on timeline