Careless
Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Careless and improper are semantically related. Sometimes you can use "Careless" instead an adjective "Improper".
Nearby Word: improperly
Mutual synonyms
Both words in one sentence
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It helps that at the end of the book, Dean's university has a nasty and embarrassing accident with chickens due to improper and careless use of magic, so Ridcully and crew can swoop in like Big Damn Heroes and show Dean up.
Source: Friendly Enemy
Cite this Source
Improper and Careless. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/careless/improper
Careless & Improper. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/careless/improper>.
Improper or Careless. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/careless/improper.
Google Ngram Viewer shows how "careless" and "improper" have occurred on timeline