"slightly improper to dine alone with a married man"; "improper medication"; "improper attire for the golf course"
is similar to
not in keeping with accepted standards of what is right or proper in polite society
"was buried with indecent haste"; "indecorous behavior"; "language unbecoming to a lady"; "unseemly to use profanity"; "moved to curb their untoward ribaldry"
is similar to
improper or even offensive
"out-of-the-way remarks"
is similar to
not in accord with established usage or procedure
"the wrong medicine"; "the wrong way to shuck clams"; "it is incorrect for a policeman to accept gifts"
see also
not suitable for a particular occasion etc
"noise seems inappropriate at a time of sadness"; "inappropriate shoes for a walk on the beach"; "put inappropriate pressure on them"
see also
offensive to good taste especially in sexual matters
"an earthy but not indecent story"; "an indecent gesture"
see also
lacking propriety and good taste in manners and conduct
"indecorous behavior"
see also
below the required standards for a purpose
"an unfit parent"; "unfit for human consumption"
see also
contrary to conscience or morality or law
"it is wrong for the rich to take advantage of the poor"; "cheating is wrong"; "it is wrong to lie"
is an attribute of
correct or appropriate behavior