1
[ adjective ] considered inappropriate for or unattractive on a particular person

Examples

"an unbecoming style"

Related terms

unwearable

2
[ adjective ] not in keeping with accepted standards of what is right or proper in polite society

Examples

"was buried with indecent haste" "indecorous behavior" "language unbecoming to a lady" "unseemly to use profanity" "moved to curb their untoward ribaldry"

Related terms

improper

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