n. 25B6; adjective (formal) INAPPROPRIATE, unsuitable, inapposite, infelicitous, inapt, unseemly, inopportune, ill-timed, untimely.
MALAPROPOS
Meaning of MALAPROPOS in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012