にして

にして means at / on / under certain conditions (time, position, age, number of times). It is a JLPT N1 Japanese grammar pattern used to pinpoint a specific time, age, position, or attempt at which something happens—often implying that the circumstance is remarkable or decisive.

This grammar point often appears in formal writing, news articles, historical accounts, and JLPT N1 reading passages. If you want to emphasize that something occurred under a precise and noteworthy condition—like an astonishingly young age or a final attempt—にして is a useful pattern to learn because it adds a refined, literary precision to your Japanese.

What does にして mean?

Use にして when you want to single out a particular point in time, a certain age, a specific social position, or a numbered attempt as the setting for an event. The grammar often carries a nuance that the condition is unexpected, noteworthy, or definitive.

Natural translations include:

• at (that exact age / time)
• on (a particular attempt / occasion)
• under (the condition of being …)
• as (holding a certain office or status)

The best translation depends on the sentence. Try to notice the writer’s intent first—are they highlighting a youthful achievement, a third try, or a formal role?—then choose the English phrase that fits.

How to form にして

The noun can indicate:

• age: 10歳さい, 二十はた歳ち
• number of attempts: 3回かい目め, 度たび目め
• time or occasion: 今こん日にち, 半はん世せい紀き
• position or status: 一国いっこくの首相しゅしょう, 一家いっかの主あるじ

Examples of the pattern:

• 10歳さいにして
• 3回かい目めにして
• 一国いっこくの首相しゅしょうにして

The noun before にして is the precise condition. In JLPT questions, wrong choices often use にして with a verb or an adjective stem—always remember that にして attaches to a noun.

When is にして used?

Use にして in situations like:

• pointing out a remarkable age at which someone achieves something
• emphasizing that only after a certain number of attempts did success come
• formally stating that a person, in their capacity as a leader, does (or fails to do) something
• describing a specific time or historical juncture that serves as the backdrop for a statement

Tone and register:

• formal and literary; common in written Japanese, official statements, historical narration
• not used in casual daily conversation (use で, に, or ときに instead)

にして example sentences

After reading each sentence, ask what job にして is doing: it pins the event to a remarkable point—a striking age, a final try, a high office. That makes the nuance easier to remember than a one-word translation.

Nuance of にして

The key nuance is the condition itself is presented as noteworthy.

• With age, にして often implies “already at such a young age” or “finally at that advanced age.”
• With number of attempts, it can suggest “only after X tries” or “just on the Xth try,” underlining effort or luck.
• With position, it adds a formal, almost dramatic weight: “in one’s capacity as…”

This matters because learners sometimes use にして as a plain “at” or “on.” In reality, its literary ring makes it unsuitable for neutral descriptions—reserve it for moments when the condition itself is the headline.

にして vs に当たっ(あたっ)て

Both にして and に当たっ(あたっ)て can locate an event at a point, but they are different.

If both translations seem possible, check whether you’re highlighting a remarkable fact (にして) or simply marking an occasion (に当たっ(あたっ)て).

Common mistakes with にして

A helpful practice: write a sentence with にして and then ask a native speaker whether it sounds appropriately dramatic. If it feels forced, scale back.

Is にして on the JLPT?

For test prep, practice reading sentences that mix にして with its look‑alikes; the context will always supply the dramatic cue.

Practice questions for にして

Keep your first sentences simple. Once the structure feels natural, add more context so the remarkable nuance becomes obvious.

Learning path for にして

To learn にして efficiently, start with its formation, then compare it with similar patterns, and finally practice in context.

Related grammar to review next

• に — because it also marks a location or time, but without the dramatic emphasis of にして
• に値(あたい)する — because it uses the same に framework to express worthiness, another formal, abstract condition
• に当たっ(あたっ)て — because it similarly pinpoints an occasion, but focuses on the event rather than the striking condition
• にひきかえ — because it also works with nouns + に, but contrasts one condition with another

Learn にして with Hane

If you want to review にして together with the related patterns above, Hane helps you practice Japanese in short, focused sessions.

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