Implausible and Valid

Implausible

Implausible adjective - Too extraordinary or improbable to believe.

Valid is an antonym for implausible.

Nearby Word: implausibly

Valid

Valid adjective - Based on sound reasoning or information.
Usage example: only further investigation will show whether your theory is valid

Implausible is an antonym for valid.

Nearby Words: validity, validation
Cite this Source
Valid and Implausible. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/implausible/valid
Implausible & Valid. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/implausible/valid>.
Valid or Implausible. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/implausible/valid.
Google Ngram Viewer shows how "implausible" and "valid" have occurred on timeline