The word "disingenuous" in English means: Not honest or sincere; giving a false appearance of frankness., Behaving in a way that is not sincere, especially by pretending that you know less about something than you really do..
The phonetic transcription of "disingenuous" is /ˌdɪsɪnˈdʒenjuəs/ in British English and /ˌdɪsɪnˈdʒenjuəs/ in American English. Click the 🔊 button to hear both pronunciations.