1. in a way that is not honest or sincere; pretending to be unaware of something one actually knows

Examples

• She disingenuously claimed she had no idea about the surprise party.
• The politician disingenuously denied knowing about the scandal.
• He disingenuously asked what was wrong, though he knew exactly what he had done.
• The company disingenuously portrayed the layoffs as voluntary departures.
• She smiled disingenuously while spreading rumors about her colleague.
• The witness testified disingenuously, withholding crucial information.