She knew she was being disingenuous.她知道自己当时并不真诚。

I regard the claim as disingenuous.我认为这么说不诚恳。

It would be disingenuous to claim that this is great art.称这是艺术瑰宝是言不由衷。

It's disingenuous of Congress to plead ignorance now.国会现在以不知情来辩解是缺乏诚意的表现。