adj.不老实的；不诚实的；虚伪的
It would be disingenuous to claim that we hadn't suspected them. 要是说我们当时还没有怀疑他们，那就是言不由衷了。
The book is entertaining, meandering and at times disingenuous. 这本书很有趣，也很调侃，并且有时，不那么真诚。
