Forbidden
Forbidden adjective - That may not be permitted.
Usage example: trespassing is forbidden
Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Usage example: an improper use of slang in a formal piece of writing
Forbidden and improper are semantically related. Sometimes you can use "Forbidden" instead an adjective "Improper".
Nearby Word: improperly
Mutual synonyms
Related pairs
- irregular and forbidden
- irregular and improper
- offensive and forbidden
- offensive and improper
- inapt and forbidden
- inapt and improper
- immoral and forbidden
- immoral and improper
- inappropriate and forbidden
- inappropriate and improper
- unsuitable and forbidden
- unsuitable and improper
- wrong and forbidden
- wrong and improper
Cite this Source
Improper and Forbidden. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/forbidden/improper
Forbidden & Improper. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/forbidden/improper>.
Improper or Forbidden. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/forbidden/improper.
Google Ngram Viewer shows how "forbidden" and "improper" have occurred on timeline