adj. 25B6; adjective IMPROPER, unseemly, unbecoming, undignified, immodest, indelicate, indecent, unladylike, ungentlemanly; inappropriate, incorrect, unsuitable, undesirable, unfitting, in bad taste, ill-bred.
INDECOROUS
Meaning of INDECOROUS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012