False
Improper
Improper adjective - Not appropriate for a particular occasion or situation.
False is a synonym for improper in incorrect topic. You can use "False" instead an adjective "Improper", if it concerns topics such as characteristic, erroneous, not suitable.
Nearby Word: improperly
Cite this Source
Improper and False. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/false/improper
False & Improper. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/false/improper>.
Improper or False. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/false/improper.
Google Ngram Viewer shows how "false" and "improper" have occurred on timeline