Bad
Bad adjective - Not conforming to a high moral standard; morally unacceptable.
Usage example: stealing is just plain bad
Improper and bad are semantically related in unsuitable topic. In some cases you can use "Improper" instead an adjective "Bad".
Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Usage example: an improper use of slang in a formal piece of writing
Bad and improper are semantically related in unsuitable topic. Sometimes you can use "Bad" instead an adjective "Improper".
Nearby Word: improperly
Mutual synonyms
Both words in one sentence
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In this version, instead, they're clumsy, improper, stupid (even the stepmother shows signs she can't stand this; see Surrounded by Idiots below), and have some strange bad habits.
Source: Film / Cinderella -
This does not include examples of animal abuse or improper care that is depicted as being bad for animals.
Source: Artistic License Animal Care - It may be shown as sad, improper, and/or perhaps even reprehensible, but participants are no more likely to come out to a bad end than any other characters in the story.
Source: Brother-Sister Incest
Cite this Source
Improper and Bad. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/bad/improper
Bad & Improper. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/bad/improper>.
Improper or Bad. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/bad/improper.
Google Ngram Viewer shows how "bad" and "improper" have occurred on timeline