1 dishonest, or morally wrong:
improper business practices * improper conduct * There was nothing improper about our relationship (= it did not involve sex).
OPPPROPER
2 (formal) not suited or appropriate to the situation:
It would be improper to comment at this stage.
OPPPROPER
3 wrong; not correct:
improper use of the drug
improperly adverb:
to behave improperly * He was improperly dressed for the occasion. * improperly cooked meat
