Dictionary.com

improper

[ im-prop-er ]
/ ɪmˈprɒp ər /
Save This Word!
See synonyms for: improper / improperly / improperness on Thesaurus.com

adjective
not proper; not strictly belonging, applicable, correct, etc.; erroneous: He drew improper conclusions from the scant evidence.
not in accordance with propriety of behavior, manners, etc.: improper conduct at a funeral.
unsuitable or inappropriate, as for the purpose or occasion: improper attire for a formal dance.
abnormal or irregular: improper functioning of the speech mechanism.
QUIZ
TEST YOUR MERIT ON THESE NEW WORDS IN 2021
The Dictionary added new words and definition to our vast collection, and we want to see how well-versed you are in the formally recognized new lingo. Take the quiz!
Question 1 of 8
What does JEDI stand for?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of improper

From the Latin word improprius, dating back to 1535–45. See im-2, proper

synonym study for improper

2. Improper, indecent, unbecoming, unseemly are applied to that which is unfitting or not in accordance with propriety. Improper has a wide range, being applied to whatever is not suitable or fitting, and often specifically to what does not conform to the standards of conventional morality: improper diet; improper behavior in church; improper language. Indecent, a strong word, is applied to what is offensively contrary to standards of propriety and especially of modesty: indecent behavior, literature. Unbecoming is applied to what is especially unfitting in the person concerned: conduct unbecoming a minister. Unseemly is applied to whatever is unfitting or improper under the circumstances: unseemly mirth.

OTHER WORDS FROM improper

im·prop·er·ly, adverbim·prop·er·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use improper in a sentence

British Dictionary definitions for improper

improper
/ (ɪmˈprɒpə) /

adjective
lacking propriety; not seemly or fitting
unsuitable for a certain use or occasion; inappropriatean improper use for a tool
irregular or abnormal

Derived forms of improper

improperly, adverbimproperness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK