unthankful
美 [ʌn'θæŋkfəl]
英 ['ʌn'θæŋkfəl] 
- adj.不感谢的 (to; for);忘恩负义的;不令人感激的
- 网络不识好歹;不知好歹
英汉解释
例句
She was unthankful to her boy friend for his gift.
她并不感谢男朋友送东西给她。
For men shall be lovers of their own selves , covetous , boasters, proud, blasphemers, disobedient to parents, unthankful, unholy.
因为那时人要专顾自己,贪爱钱财,自夸,狂傲,谤讟,违背父母,忘恩负义,心不圣洁。