Clandestine
Clandestine adjective - Undertaken or done so as to escape being observed or known by others.
Improper and clandestine are semantically related. In some cases you can use "Improper" instead an adjective "Clandestine".
Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Clandestine and improper are semantically related. Sometimes you can use "Clandestine" instead an adjective "Improper".
Nearby Word: improperly
Cite this Source
Improper and Clandestine. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/clandestine/improper
Clandestine & Improper. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/clandestine/improper>.
Improper or Clandestine. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/clandestine/improper.
Google Ngram Viewer shows how "clandestine" and "improper" have occurred on timeline