相关单词同义词ungratefulness, 近义词 ungratefulness 徒劳, rudeness 粗鲁, boorishness boorish的名词形式...反义词gratitude, 感激临近词ING, Ingvar相似词ingrained, ingrate, ingratiate, ingratiating, ingredient, ingress, ingrowing, inguinal, 返回 ingratitude