unbecoming
adjective
[ ʌnbɪˈkʌmɪŋ ]
• (especially of clothing or a colour) not flattering.
• "an unbecoming striped sundress"
Similar:
unflattering,
unattractive,
unsightly,
plain,
ugly,
ugly-looking,
hideous,
unsuitable,
unsuited,
ill-suited,
• (of behaviour) not fitting or appropriate; unseemly.
• "it was unbecoming for a university to do anything so crass as advertising its wares"
Similar:
inappropriate,
unfitting,
unbefitting,
unsuitable,
unsuited,
ill-suited,
inapt,
out of keeping,
untoward,
incorrect,
unacceptable,
unworthy of,
improper,
lacking in propriety,
indecorous,
unseemly,
unladylike,
ungentlemanly,
unmannerly,
undignified,
indelicate,
indecent,
tasteless,