相关单词近義詞 ungrateful 忘恩負義的, thankless 不感謝的, churlish 粗野的, unmindful 不畱心的, ungracious 沒有教養的臨近詞una, unaker相似詞unanticipated, unapologetic, unappealing, unappetizing, unapproachable, unarguable, unarmed, unashamed, 返回 unappreciative