Dirty
Dirty adjective - Not clean.
Improper
Improper adjective - Not appropriate for a particular occasion or situation.
Dirty is a synonym for improper in indecent topic. Sometimes you can use "Dirty" instead an adjective "Improper". vulgar substitute
Nearby Word: improperly
Mutual synonyms
Both words in one sentence
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Sandman is the only boxer in the game to not resort to using weapons, dirty / illegal moves, support like Soda Popinski's health-replenishing soda, or even improper boxing attire.
Source: Let's Fight Like Gentlemen
Cite this Source
Improper and Dirty. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/dirty/improper
Dirty & Improper. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/dirty/improper>.
Improper or Dirty. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/dirty/improper.
Google Ngram Viewer shows how "dirty" and "improper" have occurred on timeline