相关单词近义词 ungrateful 忘恩负义的, thankless 不感谢的, churlish 粗野的, unmindful 不留心的, ungracious 没有教养的临近词una, unaker相似词unanticipated, unapologetic, unappealing, unappetizing, unapproachable, unarguable, unarmed, unashamed, 返回 unappreciative