Functional
Functional adjective - Being in effective operation.
Valid and functional are semantically related. In some cases you can use "Valid" instead an adjective "Functional".
Valid
Valid adjective - According to the rules of logic.
Functional and valid are semantically related. Sometimes you can use "Functional" instead an adjective "Valid".
Nearby Words: validity, validation
Mutual synonyms
Cite this Source
Valid and Functional. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/functional/valid
Functional & Valid. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/functional/valid>.
Valid or Functional. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/functional/valid.
Google Ngram Viewer shows how "functional" and "valid" have occurred on timeline