adverb

  1. (if) by some chance, by some possibility, in the unlikely event that, 10000 to 1.

noun

  1. (unlikely event of) emergency, the worst(-case scenario).

Variations

Pronunciation Kanji Kana Is Common
 
万が一 まんがいち
まん
 
いつ
万が一 まんがいつ

Contained Kanji Breakdown

ten thousand, 10,000
バン マン よろず (2nd, N5)
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
wrapping enclosure, wrapping radical (no. 20)
ホウ つつ.む (Kentei 1)
one, one radical (no.1)
イチ いっ ひと- (1st, N5)