言うまでもないNeedless to say
言うまでもない marks a point as so obvious or already understood that it does not need to be stated. It is often translated as “needless to say,” “of course,” or “it goes without saying.”
What it emphasizes
This expression does more than say that something is true. It presents the point as already accepted or obvious, then uses that shared understanding for emphasis or as a basis for what follows. Because of that, choose facts that are genuinely clear from the context rather than using it to declare a debatable opinion self-evident.
The three main shapes
The ending changes according to the role the expression plays in the sentence.
製品開発では、利用者の安全が最優先であることは言うまでもない。
It goes without saying that user safety is the highest priority in product development.
Analyzeこの資料は、言うまでもなく社外秘です。
Needless to say, this document is confidential.
Analyze言うまでもなく connects directly to the statement that follows.
安全性は言うまでもないが、使いやすさも重要だ。
Safety goes without saying, but ease of use is also important.
AnalyzeThe obvious point is acknowledged briefly before another concern is added.
Obviousness versus an unnecessary action
言うまでもない is a fixed expression meaning that a point is too obvious to require saying. With another verb, the broader pattern normally means that performing that action is unnecessary; it does not automatically retain the “needless to say” meaning.
駅までは歩いて五分だから、タクシーを呼ぶまでもない。
The station is only a five-minute walk away, so there is no need to call a taxi.
AnalyzeThis is the broader no-need pattern: calling a taxi is unnecessary. It does not mean “needless to say.”
More examples
冬山では、十分な防寒対策が必要なのは言うまでもない。
It goes without saying that adequate protection from the cold is necessary in the winter mountains.
Analyze言うまでもなく、個人情報は慎重に扱わなければならない。
Needless to say, personal information must be handled carefully.
Analyze契約書に署名する前に内容を確認すべきなのは言うまでもない。
It goes without saying that you should check the contents of a contract before signing it.
Analyze締め切りを守ることは言うまでもないが、内容の正確さも同じくらい重要だ。
Meeting the deadline goes without saying, but the accuracy of the content is equally important.
Analyzeこの薬は医師の指示に従って使用する。言うまでもなく、他人に渡してはいけない。
Use this medicine according to your doctor's instructions. Needless to say, you must not give it to anyone else.
Analyze十分な準備が必要なのは言うまでもないが、状況に応じた判断も欠かせない。
It goes without saying that thorough preparation is necessary, but judgment suited to the situation is also essential.
Analyze