Extensional and Unreasonable

Opposite meaning words

Extensional adjective - Defining a word by listing the class of entities to which the word correctly applies.

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Unreasonable is an antonym for extensional in probable topic.

Unreasonable adjective - Having no basis in reason or fact.

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Extensional is an antonym for unreasonable.

Cite this Source

Unreasonable and Extensional. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/extensional/unreasonable

Extensional & Unreasonable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/extensional/unreasonable>.

Unreasonable or Extensional. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/extensional/unreasonable.

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