Fatuous and Valid

Fatuous

Fatuous adjective - Not having or showing an ability to absorb ideas readily.
Usage example: the fatuous questions that the audience members asked after the lecture suggested to the oceanographer that they had understood little

Valid is an antonym for fatuous.

Nearby Words: fatuity, fatuousness, fatuously

Valid

Valid adjective - According to the rules of logic.
Usage example: your argument isn't valid because you're taking what should be the conclusion and using it as a premise

Fatuous is an antonym for valid.

Nearby Words: validity, validation
Cite this Source
Valid and Fatuous. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/fatuous/valid
Fatuous & Valid. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/fatuous/valid>.
Valid or Fatuous. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/fatuous/valid.
Google Ngram Viewer shows how "fatuous" and "valid" have occurred on timeline