| 单词 | thankless |
| 例句 | thankless adjective 1.•a thankless task:unenviable, difficult, unpleasant, unrewarding | unappreciated, unrecognized, unacknowledged. ANT rewarding. 2.•her thankless children:ungrateful, unappreciative, unthankful, ingrate. ANT grateful. |
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英语同义词词典收录了14896条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。