Definition of improper in English:

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Pronunciation: /imˈpräpər/


1Not in accordance with accepted rules or standards, especially of morality or honesty: he was accused of improper behavior in his business dealings
More example sentences
  • The fall in stock market values is attributed mainly to concerns about improper accounting standards.
  • If there's a potential conflict of interest or improper influence, the public has a right to know.
  • Many acts may look improper and unethical, yet there may have been a good reason for them.
inappropriate, unacceptable, unsuitable, unprofessional, irregular;
unethical, corrupt, immoral, dishonest, dishonorable
informal raunchy, steamy, blue, X-rated
1.1Lacking in modesty or decency: it was thought improper for elderly women to wear bright colors
More example sentences
  • She had spoken without being asked a question, which was improper and impolite.
  • The doctor, a married father of three, accepts meeting Miss A outside work but denied any improper conduct took place.
  • Our children unfortunately are not generally made aware that behaving rudely is improper.
indecent, immodest, immoral;
scandalous, shocking, offensive


Late Middle English: from French impropre or Latin improprius, from in- 'not' + proprius 'one's own, proper'.

Words that rhyme with improper

bopper, copper, cropper, Dopper, dropper, hopper, Joppa, poppa, popper, proper, shopper, stopper, swapper, topper, whopper
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