B1adjectiveformallawsociety
US/ɪmˈprɑː.pər/
UK/ɪmˈprɒp.ə/
not suitable, correct or honest for a particular situation
In context
The manager was fired for improper use of company money.
It would be improper for a judge to discuss the case with friends.
Improper storage of the medicine can make it less effective.
Words that go with improper
adjective + noun
- improper useImproper use of the tool caused the accident.
- improper behaviorThe school punished any improper behavior on the bus.
- improper conductThe officer was investigated for improper conduct.
- improper disposalImproper disposal of batteries harms the environment.
adverb + adjective
- highly improperCalling a client by a nickname is highly improper.
adjective + preposition
- improper forSuch language is improper for a business meeting.
Common mistakes
Incorrect:
He drives improper on the highway.Correct: He drives improperly on the highway.