Nonvalid and Specious

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Nonvalid adjective - Having no basis in reason or fact.

Usage example: a nonvalid theory that most scientists rejected long ago

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Specious and nonvalid are semantically related. In some cases you can use "Specious" instead an adjective "Nonvalid".

Specious adjective - Tending or having power to deceive.

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Nonvalid and specious are semantically related. Sometimes you can use "Nonvalid" instead an adjective "Specious".

Nearby Words: specie, speciously

Cite this Source

Specious and Nonvalid. (2017). Retrieved 2026, August 15, from https://thesaurus.plus/related/nonvalid/specious

Nonvalid & Specious. N.p., 2017. Web. 15 Aug. 2026. <https://thesaurus.plus/related/nonvalid/specious>.

Specious or Nonvalid. 2017. Accessed August 15, 2026. https://thesaurus.plus/related/nonvalid/specious.

Google Ngram Viewer shows how "nonvalid" and "specious" have occurred on timeline