Invalid and Reasoned

Invalid

Invalid adjective - Not using or following good reasoning.
Usage example: an argument which has one untrue premise is invalid

Reasoned is an antonym for invalid.

Reasoned

Reasoned adjective - Based on sound reasoning or information.
Usage example: a candidate with a reasoned stance on this important issue

Invalid is an antonym for reasoned.

Cite this Source
Reasoned and Invalid. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/invalid/reasoned
Invalid & Reasoned. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/invalid/reasoned>.
Reasoned or Invalid. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/invalid/reasoned.
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