(さいちゅう)

さいちゅうに
expression
in the middle of; right in the midst of; during
1. in the middle of; right in the midst of; during
Indicates being right in the middle of an action or situation, often when something unexpected happens or interrupts. Stronger than just 'during' — it emphasizes the exact moment within an ongoing activity.
食事(しょくじ)最中(さいちゅう)電話(でんわ)()った。
The phone rang in the middle of my meal.
会議(かいぎ)最中(さいちゅう)地震(じしん)()きた。
An earthquake occurred in the middle of the meeting.
試験勉強(しけんべんきょう)最中(さいちゅう)友達(ともだち)(あそ)びに()(こま)った。
A friend came to hang out right when I was studying for exams, which was a problem.

Composed of 最中(さいちゅう) (in the midst of) and the particle に. Often used when an interruption or unexpected event occurs during an ongoing activity.

GRAMMAR:

Attaches to nouns or verb dictionary form + の:

  • 食事(しょくじ)最中(さいちゅう)に: in the middle of eating
  • (はな)している最中(さいちゅう)に: in the middle of talking
  • ()ている最中(さいちゅう)に: while sleeping

SIMILAR EXPRESSIONS:

  • (ちゅう)に: during — more neutral, less emphasis on 'right in the middle'
  • ~ている途中(とちゅう)で: halfway through — emphasis on the midpoint of a process
  • 最中(さいちゅう)だ: to be in the middle of (predicative) — (いま)まさに作業(さぎょう)最中(さいちゅう)だ (I'm right in the middle of work)

CAUTION:
Do not confuse 最中(さいちゅう) (in the middle of) with 最中(もなか) (a traditional Japanese wafer cake filled with bean paste). Same kanji, different readings and meanings.