adj.不感谢的；忘恩的；吃力不讨好
副词: thanklessly 名词: thanklessness
Adjective:not feeling or showing gratitude;
"ungrateful heirs"
"How sharper than a serpent's tooth it is / To have a thankless child!"
not likely to be rewarded;
"grading papers is a thankless task"
以上就是本站详细整理的词语thankless是什么意思的翻译解释，供大家参考一下。
When friends come a long way..it seems pretty thankless to send them away without so much as a cup of tea.