Necessary
Necessary adjective - Forcing one's compliance or participation by or as if by law.
Valid and necessary are semantically related. In some cases you can use "Valid" instead an adjective "Necessary".
Nearby Words: necessity, necessarily
Valid
Valid adjective - According to the rules of logic.
Necessary and valid are semantically related. Sometimes you can use "Necessary" instead an adjective "Valid".
Nearby Words: validity, validation
Mutual synonyms
Both words in one sentence
- Sometimes this has valid in-story reasons — if secrecy is paramount, for example, it may be deemed necessary for the sake of maintaining a cover.
Source: Kidnapped by an Ally - Miranda warnings are not necessary for a valid arrest; they are concerned with statements by the arrested suspect.
Source: Miranda Rights -
Combine with a unique damage type that no monster is resistant or immune to, and bombarding enemies with dozens of blaster shots becomes a valid (even necessary, in one case) end-game tactic.
Cite this Source
Valid and Necessary. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/necessary/valid
Necessary & Valid. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/necessary/valid>.
Valid or Necessary. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/necessary/valid.
Google Ngram Viewer shows how "necessary" and "valid" have occurred on timeline