相关单词同義詞ungratefulness, 近義詞 ungratefulness 徒勞, rudeness 粗魯, boorishness boorish的名詞形式...反義詞gratitude, 感激臨近詞ING, Ingvar相似詞ingrained, ingrate, ingratiate, ingratiating, ingredient, ingress, ingrowing, inguinal, 返回 ingratitude