瞬 時(しゅんじ)に

しゅんじに

adverb

in an instant; instantaneously

time-general

1. in an instant; instantaneously; in a flash

Happening in an extremely short amount of time, almost immediately. Emphasizes the speed at which something occurs.

瞬時(しゅんじ)に判断(はんだん)する。

To judge in an instant.

火(ひ)は瞬時(しゅんじ)に建物(たてもの)全体(ぜんたい)に広(ひろ)がった。

The fire spread to the entire building in an instant.

AIが瞬時(しゅんじ)に大量(たいりょう)のデータを処理(しょり)する時代(じだい)になった。

We have entered an era where AI processes vast amounts of data instantaneously.

Usage

The adverbial form of the noun 瞬時(しゅんじ) (an instant), which also modifies nouns with の: 瞬時(しゅんじ)の判断(はんだん) (a split-second judgment). 瞬時(しゅんじ)に is somewhat formal and is common in writing about machines, reflexes and processes.

Common collocations

瞬時(しゅんじ)に判断(はんだん)する: to judge in an instant
瞬時(しゅんじ)に反応(はんのう)する: to react instantly
瞬時(しゅんじ)に理解(りかい)する: to understand at once

Similar words

一瞬(いっしゅん)で: in a moment — the everyday spoken choice
たちまち: in no time — narrates a rapid change (たちまち売(う)り切(き)れた)
即座(そくざ)に: on the spot — stresses a response with no delay, often a decision or answer

Related Words

Compare: 即座(そくざ) (immediately, on the spot, instantly)

Compare: 一瞬で (in an instant)

Compare: たちまち (in no time)

Compare: 即座(そくざ)に (on the spot)

general

Added 2026.3.23 11:05 · Revised 2026.10.12 22:28

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