Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Not on and improper are semantically related. In some cases you can replace phrase "Not on" with "Improper", this terms are similar.
Nearby Word: improperly
Not on
Mutual synonyms
Cite this Source
Not on and Improper. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/improper/not_on
Improper & Not on. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/improper/not_on>.
Not on or Improper. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/improper/not_on.
Google Ngram Viewer shows how "improper" and "not on" have occurred on timeline