Necessary and Uncertain

Opposite meaning words

Necessary adjective - Impossible to avoid or evade.

Usage example: taxes will always be a necessary evil

Show all Definitions

Uncertain is an antonym for necessary.

Nearby Words: necessity, necessarily

Uncertain adjective - Likely to change frequently, suddenly, or unexpectedly.

Show all Definitions

Necessary is an antonym for uncertain.

Nearby Words: uncertainty, uncertainly

Cite this Source

Uncertain and Necessary. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/necessary/uncertain

Necessary & Uncertain. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/necessary/uncertain>.

Uncertain or Necessary. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/necessary/uncertain.

Google Ngram Viewer shows how "necessary" and "uncertain" have occurred on timeline