UNOFFICIAL Meaning of UNOFFICIAL in English adj.Unofficial is used with these nouns: ↑ ambassador , ↑ biography , ↑ capacity , ↑ communiqué , ↑ estimate , ↑ motto , ↑ strike , ↑ version , ↑ visit Oxford Collocations English Dictionary. Оксфордский английский словарь словосочетаний . 2012