Extensional and Optional
Opposite meaning words
Extensional
Extensional adjective - Defining a word by listing the class of entities to which the word correctly applies.
Optional
Optional adjective - Subject to one's freedom of choice.
Extensional is an antonym for optional.
Nearby Words: option, optionally
Cite this Source
Optional and Extensional. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/extensional/optional
Extensional & Optional. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/extensional/optional>.
Optional or Extensional. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/extensional/optional.
Google Ngram Viewer shows how "extensional" and "optional" have occurred on timeline