Inopportune and Improper

Inopportune

Inopportune adjective - Occurring before the usual or expected time.

Improper is a synonym for inopportune. In some cases you can use "Improper" instead an adjective "Inopportune".

Nearby Word: inopportunely

Improper

Improper adjective - Not appropriate for a particular occasion or situation.
Usage example: an improper use of slang in a formal piece of writing

Inopportune is a synonym for improper in inappropriate topic. Sometimes you can use "Inopportune" instead an adjective "Improper", if it concerns topics such as not suitable.

Nearby Word: improperly
Cite this Source
Improper and Inopportune. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/inopportune/improper
Inopportune & Improper. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/inopportune/improper>.
Improper or Inopportune. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/inopportune/improper.
Google Ngram Viewer shows how "inopportune" and "improper" have occurred on timeline