Nonvalid and Weak

Nonvalid

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

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

Weak

Weak adjective - Lacking bodily strength.

Nonvalid and weak are semantically related. Sometimes you can use "Nonvalid" instead an adjective "Weak".

Cite this Source
Weak and Nonvalid. (2017). Retrieved 2026, August 14, from https://thesaurus.plus/related/nonvalid/weak
Nonvalid & Weak. N.p., 2017. Web. 14 Aug. 2026. <https://thesaurus.plus/related/nonvalid/weak>.
Weak or Nonvalid. 2017. Accessed August 14, 2026. https://thesaurus.plus/related/nonvalid/weak.
Google Ngram Viewer shows how "nonvalid" and "weak" have occurred on timeline