资料来源 : pyDict

不感谢的,不感恩的,不知感谢的

资料来源 : WordNet®

unthankful
     adj : not feeling or showing gratitude; "ungrateful heirs"; "How
           sharper than a serpent's tooth it is / To have a
           thankless child!"- Shakespeare [syn: {ungrateful}, {thankless}]
           [ant: {grateful}]