Extensional and Invalid

Opposite meaning words

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

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Invalid is an antonym for extensional in probable topic.

Invalid adjective - Chronically or repeatedly suffering from poor health.

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Extensional is an antonym for invalid.

Cite this Source

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

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

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

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