bona fide UK /ˌbəʊ.nəˈfaɪ.di/US /ˈboʊnə.faɪd/adjective 2adverb 1 adjective2 •In good faith; sincere; without deception or ulterior motive.Although he failed, the prime minister made a bona fide attempt to repair the nation's damaged economy. •Genuine; not counterfeit.This is a bona fide Roman coin. adverb1 •In good faith; genuinely, sincerely.But by the knots I am speaking of, may it please your reverences to believe, that I mean good, honest, devilish tight, hard knots, made bona fide, as Obadiah made his; […] — 1761
