thankless
FREQ #31720
a. 不感谢的, 忘恩的, 不知感恩的
释义与例句
adj.
-
1.
not appreciated or rewarded
-
2.
ungrateful or unappreciative
词汇关系
同义词 4
近义相关 2
词源
From Middle English thankles, equivalent to thank + -less.
来源：wiktionary