Also found in: Thesaurus.


1. Not suited to circumstances or needs; unsuitable: improper shoes for a hike; improper medical treatment.
2. Not in keeping with conventional mores; indecorous: improper behavior; an improper suggestion. See Synonyms at unseemly.
3. Not consistent with established truth, fact, or rule; incorrect: improper grammar; an improper conclusion.
4. Irregular or abnormal: complications due to improper functioning of the immune system.

im·prop′er·ly adv.
im·prop′er·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.improperness - an improper demeanor
demeanor, demeanour, deportment, behaviour, conduct, behavior - (behavioral attributes) the way a person behaves toward other people
incorrectness - lack of conformity to social expectations
inappropriateness, wrongness - inappropriate conduct
indelicacy - the trait of being indelicate and offensive
indecorousness, indecorum - a lack of decorum
indecency - the quality of being indecent
correctitude, properness, propriety - correct or appropriate behavior


References in periodicals archive ?
(33) In respect to the physical examination, the Iowa Board of Medicine rested its arguments on three elements: a thorough medical history and physical examination to be the cornerstone of good medical care, the improperness off-label use of the medications by Planned Parenthood, and the significance of a face-to-face meeting in promoting the health or interest of a woman seeking to terminate her pregnancy.
So rather than trying to prescribe a "properly" political concept of love, we could instead turn to the "improperness" of love.