Improper and Valid

Opposite meaning words

Improper adjective - Not appropriate for a particular occasion or situation.

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Valid is an antonym for improper in not suitable topic.

Nearby Word: improperly

Valid adjective - According to the rules of logic.

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Improper is an antonym for valid.

Nearby Words: validity, validation

Cite this Source

Valid and Improper. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/improper/valid

Improper & Valid. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/improper/valid>.

Valid or Improper. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/improper/valid.

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