Necessary
Necessary adjective - Forcing one's compliance or participation by or as if by law.
Unalterable and necessary are semantically related. In some cases you can use "Unalterable" instead an adjective "Necessary".
Nearby Words: necessity, necessarily
Unalterable
Unalterable adjective - Not capable of changing or being changed.
Necessary and unalterable are semantically related. Sometimes you can use "Necessary" instead an adjective "Unalterable".
Nearby Words: unaltered, unalterably
Mutual synonyms
Cite this Source
Unalterable and Necessary. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/necessary/unalterable
Necessary & Unalterable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/necessary/unalterable>.
Unalterable or Necessary. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/necessary/unalterable.
Google Ngram Viewer shows how "necessary" and "unalterable" have occurred on timeline