Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Unofficial and improper are semantically related. In some cases you can use "Unofficial" instead an adjective "Improper".
Nearby Word: improperly
Unofficial
Unofficial adjective - Not having official authority or sanction.
Improper and unofficial are semantically related. Sometimes you can use "Improper" instead an adjective "Unofficial".
Nearby Word: unofficially
Mutual synonyms
Related pairs
- irregular and improper
- irregular and unofficial
- loose and improper
- loose and unofficial
- inappropriate and improper
- inappropriate and unofficial
- unsuitable and improper
- unsuitable and unofficial
- illegitimate and improper
- illegitimate and unofficial
- illegal and improper
- illegal and unofficial
- unlawful and improper
- unlawful and unofficial
Cite this Source
Unofficial and Improper. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/improper/unofficial
Improper & Unofficial. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/improper/unofficial>.
Unofficial or Improper. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/improper/unofficial.
Google Ngram Viewer shows how "improper" and "unofficial" have occurred on timeline