/ˌʌnəˈfɪʃl ||; ˌʌnəˈfɪʃəl/adj not accepted or approved by a person in authority 未经批准的；非官方的；非正式的:
an unofficial strike 未经工会同意的罢工Unofficial reports say that four people died in the explosion. 非官方的报道说，有四人在爆炸中死亡。 [OPP] official 反义词为official➔unofficially /-ʃəli ||; -ʃəlɪ/ adv