In a manner that is not sincere or truthful; insincerely.

In a way that is deceitful and lacking in honesty.

धोखाधड़ी से

English Usage: He disingenuously claimed ignorance about the incident, although he was present.

Hindi Usage: उसने घटना के बारे में बेईमानी से अज्ञानता का दावा किया, हालाँकि वह वहाँ मौजूद था।