Simple Definition of improper
: not correct
: not following rules of acceptable behavior : legally or morally wrong
: not suitable for the situation : not appropriate
Full Definition of improper
: not proper: as a : not in accord with fact, truth, or right procedure : incorrect <improper inference> b : not regularly or normally formed or not properly so called c : not suited to the circumstances, design, or end <improper medicine> d : not in accord with propriety, modesty, good manners, or good taste <improper language>
Examples of improper
The doctor gave him an improper diagnosis.
They claim to have evidence of improper police conduct.
improper use of public land
This is an improper diet for a growing teenager.
It would be improper for me to ask such a favor of her.
He made some improper remarks.
Origin of improper
Middle English, from Middle French impropre, from Latin improprius, from in- + proprius proper
First Known Use: 15th century
Synonym Discussion of improper
Seen and Heard
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