Last Updated：2025/11/20

Occurring, arising, or functioning without any delay; happening within an imperceptibly brief period of time.

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See correct answer

instantaneous

Source Word

instantaneous

IPA(Pronunciation)

Adjective

not-comparable

Occurring, arising, or functioning without any delay; happening within an imperceptibly brief period of time.

Japanese Meaning

瞬時の / 一瞬の / 即座の / 遅れなく発生する

The instantaneous response of the emergency brake prevented a collision.

緊急ブレーキの瞬時の反応が衝突を防いだ。

Sense（1）

Occurring, arising, or functioning without any delay; happening within an imperceptibly brief period of time.

This instantaneous motion is supposed by you, to be infinitely swift.