The member was asked to apologize for using unparliamentary expressions in the debate.

unparliamentary 是由前缀 un-（表示"否定"）和 parliamentary（议会的）组成的形容词。parliamentary 来自名词 parliament（议会），加上后缀 -ary 构成形容词。 unparliamentary 字面意思是"不符合议会规范的"，特指在议会场合使用的不恰当、不礼貌或违反议会规定的语言或行为。