Not genuinely meaning what has been expressed; not sincere; artificial.
“Janice’s furious glare showed that her apology was insincere.”
Not noble; unbecoming true honor or dignity; mean; unworthy; fake or deceptive.
Not ingenuous; not frank or open; uncandid; unworthily or meanly artful.
Assuming a pose of naïveté to make a point or for deception.
not expressing genuine feelings
“she flashed him an insincere smile”
not candid or sincere, typically by pretending that one knows less about something than one really does
“this journalist was being somewhat disingenuous as well as cynical”