Groundless and Valid

Opposite meaning words

Groundless adjective - Having no basis in reason or fact.

Usage example: fears of a strike proved groundless

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Valid is an antonym for groundless.

Nearby Words: ground, groundlessness

Valid adjective - Based on sound reasoning or information.

Usage example: only further investigation will show whether your theory is valid

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Groundless is an antonym for valid.

Nearby Words: validity, validation

Cite this Source

Valid and Groundless. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/groundless/valid

Groundless & Valid. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/groundless/valid>.

Valid or Groundless. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/groundless/valid.

Google Ngram Viewer shows how "groundless" and "valid" have occurred on timeline