unthankful
adj. 不感谢的; 不感恩的; 不知感谢的; 使人不愉快的
1. not feeling or showing gratitude;
She was unthankful to her boy friend for his gift.
她并不感谢男朋友送东西给她.
He was not unthankful for that.
他正巴不得这样做呢.
ungrateful