disingenuous

/ˌdɪs.ɪn.ˈdʒɛn.ju.əs/adjective

Lacking honor; not deserving of respect.

Example sentence

“His disingenuous excuse convinced no one at the meeting.”

The current standard meaning is feigning sincerity or pretending to know less than one does. It accuses someone of calculated fake innocence, stronger than 'insincere'.

Related words

dismalDark, depressing, and without any cheer.disheveledTo make something messy or throw it into disorder.dismayA sudden sinking of the spirits, when courage and confidence collapse in the face of trouble or danger.dishA container for holding or serving food, such as a plate that is mostly flat with a shallow hollow in the middle.disparageA marriage between people of unequal social rank, especially to someone of lower standing.disgustA strong feeling of dislike or revulsion toward something unpleasant or offensive.