Nonvalid and Preposterous

Nonvalid

Nonvalid adjective - Having no basis in reason or fact.
Usage example: a nonvalid theory that most scientists rejected long ago

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

Preposterous

Preposterous adjective - Conceived or made without regard for reason or reality.

Nonvalid and preposterous are semantically related. Sometimes you can use "Nonvalid" instead an adjective "Preposterous".
Cite this Source
Preposterous and Nonvalid. (2017). Retrieved 2026, August 15, from https://thesaurus.plus/related/nonvalid/preposterous
Nonvalid & Preposterous. N.p., 2017. Web. 15 Aug. 2026. <https://thesaurus.plus/related/nonvalid/preposterous>.
Preposterous or Nonvalid. 2017. Accessed August 15, 2026. https://thesaurus.plus/related/nonvalid/preposterous.
Google Ngram Viewer shows how "nonvalid" and "preposterous" have occurred on timeline