急(きゅう)に

きゅうに
adverb
suddenly; abruptly; rapidly
descriptive
1. suddenly; abruptly
Happening without warning or preparation.
急(きゅう)に雨(あめ)が降(ふ)り出(だ)した。
It suddenly started raining.
急(きゅう)に予定(よてい)が変(か)わった。
The plans suddenly changed.
急(きゅう)に走(はし)ると危(あぶ)ないですよ。
It's dangerous if you run suddenly.
車(くるま)が急(きゅう)に止(と)まった。
The car stopped suddenly.
急(きゅう)に熱(ねつ)が出(で)て、学校(がっこう)を休(やす)んだ。
I suddenly got a fever and stayed home from school.
2. rapidly; quickly
At a fast pace, with urgency.
急(きゅう)に行(い)こう！
Let's go quickly!
急(きゅう)に仕事(しごと)を終(お)わらせた。
I finished the work quickly.
急(きゅう)に準備(じゅんび)する必要(ひつよう)がある。
We need to prepare quickly.
時間(じかん)がないから、急(きゅう)に食(た)べた。
Since there was no time, I ate quickly.
電車(でんしゃ)に乗(の)り遅(おく)れそうだったので、急(きゅう)に家(いえ)を出(で)た。
Since I was about to miss the train, I left home quickly.

急(きゅう)に is an adverb formed from the na-adjective 急(きゅう) (sudden, urgent).

Common patterns

Similar words

  • 急(きゅう)に vs. 突然(とつぜん): Both mean "suddenly," but 突然(とつぜん) emphasizes unexpectedness more strongly, while 急(きゅう)に can also mean "quickly/hurriedly."
  • 急(きゅう)に vs. いきなり: いきなり implies doing something without warning or preamble, often with a nuance of rudeness.

Note: 急(きゅう)に can describe both unexpected events and urgent/hurried actions.

Related Words

Synonym: 突然(とつぜん) (suddenly (more emphatic))
Related: 急(きゅう) (urgent (na-adjective))
Compare: ふと (suddenly)
Compare: 不意(ふい)に (unexpectedly)
Compare: 突然(とつぜん)に (suddenly)
Compare: 俄然(がぜん) (suddenly)
Compare: 唐突(とうとつ)に (abruptly)
Compare: にわかに (suddenly)
Compare: 急激(きゅうげき)に (rapidly)
core
Added 2026.1.13 15:25 · Revised 2026.9.2 12:02
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