Improper and Proper

Opposite meaning words

sentence examples

Improper

Improper adjective - Not appropriate for a particular occasion or situation.
Usage example: an improper use of slang in a formal piece of writing
Show all Definitions
Synonyms for Improper
Antonyms for Improper
Proper is an antonym for improper in topics: indecent, not suitable.
Nearby Word: improperly

Proper

Proper adjective - Following the established traditions of refined society and good taste.
Usage example: the formal ball called for proper attire—tuxedos and full-length gowns only
Show all Definitions
Synonyms for Proper
Antonyms for Proper
Improper is an antonym for proper in topics: correct, individual, suitable, mannerly, conventional.
Nearby Words: property, properly
Similar words of improper

Similar words of proper

Both words in one sentence

  • Literature / Reamde Nearly every time a gun is mentioned, we hear about whether the character is using proper or improper gun handling techniques.
    Source: Literature / Reamde
  • Artistic License – Gun Safety Many of the POV characters have gun handling experience, so whenever someone handles a gun in the story, which is often, we hear about whether they're using proper or improper gun safety.
    Source: Artistic License – Gun Safety
  • Chizuru has differing versions of her main attacks, which can serve very well for proper/improper reactions via sending out afterimages of herself (sadly, due to the nature of her moves she can easily have her copies get hit and take damage regardless).
    Source: Difficult but Awesome
More sentences
Cite this Source
Proper and Improper. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/improper/proper
Improper & Proper. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/improper/proper>.
Proper or Improper. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/improper/proper.

Antonyms for improper


Antonyms for proper

Google Ngram Viewer shows how "improper" and "proper" have occurred on timeline