PERSPICACIOUS Meaning of PERSPICACIOUS in English perspicacious BrE AmE ˌpɜːsp ɪ ˈkeɪʃ əs ◂ -ə- AmE \ ˌpɝːsp-▷ perspicacious|ly li▷ perspicacious|ness nəs nɪs Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012