Improper and So

Opposite meaning words

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

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So is an antonym for improper.

Nearby Word: improperly

So adjective - Being in agreement with the truth or a fact or a standard.

Usage example: I'm afraid that some of what you've said just isn't so

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Improper is an antonym for so.

Cite this Source

So and Improper. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/improper/so

Improper & So. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/improper/so>.

So or Improper. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/improper/so.

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