Infallible
Infallible adjective - Not being or likely to be wrong.
Valid and infallible are semantically related. In some cases you can use "Valid" instead an adjective "Infallible".
Nearby Words: infallibly, infallibility
Valid
Valid adjective - According to the rules of logic.
Infallible and valid are semantically related. Sometimes you can use "Infallible" instead an adjective "Valid".
Nearby Words: validity, validation
Mutual synonyms
Cite this Source
Valid and Infallible. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/infallible/valid
Infallible & Valid. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/infallible/valid>.
Valid or Infallible. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/infallible/valid.
Google Ngram Viewer shows how "infallible" and "valid" have occurred on timeline