N1 Inevitability and Necessity

~ずとも: meaning, usage and examples

~ずとも means: even without... / without having to...

Updated 9 November 2026 · By the My Senpai team · Spotted a mistake? Tell us

Examples

1. 説明せつめいせずとも、皆みなわかっているはずだ。

   Even without explaining, everyone should understand.

2. 言いわれずとも、自分じぶんの責任せきにんは承知しょうちしている。

   I'm aware of my responsibility without being told.

3. 急いそがずとも、会議かいぎには十分じゅうぶん間まに合あいます。

   Even without hurrying, you'll easily make it to the meeting.

4. 細こまかく指示しじされずとも、木村きむらさんは自分じぶんで判断はんだんして動うごける。

   Mr. Kimura can judge and act on his own without being given detailed instructions.

When to use it

A formal "even without doing" or "without having to." It says the result is the same whether or not the action happens: 「言いわれずとも、わかっている」 (I know without being told). Common: 言いわずとも, 急いそがずとも, 見みずとも. It often implies the action is unnecessary.

Nuance

Literary and formal, but some phrases (言いわずとも, 言いわれずとも) are used in speech too. The second clause is often a judgment or possibility: わかる, よい, 間まに合あう. It sounds dignified, so it suits speeches and writing more than chat.

Compare

なくても is the everyday form: 急いそがなくても間まに合あう. ずとも is its formal version: 急いそがずとも間まに合あう. ずに means "without doing" as a manner: 何なにも言いわずに帰かえった. ずとも carries "even if not," a concession. ずに済すむ means "get by without": 待またずに済すんだ.

Tip: Remember する becomes せずとも, never しずとも. Think of it as the formal twin of なくても.