adj.不感谢的；不感恩的；不知感谢的

She was unthankful to her boy friend for his gift. 她并不感谢男朋友送东西给她。

Having too much often makes you unthankful.... 老妈说我施法时的吟唱声吓得死人。。。。。

For He is kind to the unthankful and evil. 因为他恩待那忘恩的和作恶的。

He is good even to people who are unthankful and cruel. 同样，人类就算弱小，也不是哪个别的生物的仆人。

Can we ask God today to keep us from ever being unthankful to him or ever wanting our own way instead of his? 主啊，求你使我常存感恩之心，求你保守我不要任意而行。