in a way that shows that you are pretending to feel something that you do not really feel, or do not mean what you say

She smiled insincerely at Howard from time to time. 她不时对霍华德虚伪地微笑。

He sent his love insincerely to Kate and hung up. 在挂断电话前他虚伪地向凯特表达了他的爱。