百年不遇 bǎi nián bù yù

DEFINITIONS

  1. only met with once every hundred years (drought, flood etc)

CHARACTERS

百 bǎi
HSK 2
one hundred; numerous, many
年 nián
HSK 1
year; new-years; person's age
不 bù
HSK 1
no, not; un-; negative prefix
遇 yù
HSK 3
meet, come across, encounter