必不可少 bì bù kě shǎo

DEFINITIONS

  1. absolutely necessary
  2. indispensable
  3. essential

CHARACTERS

必 bì
HSK 3
surely, most certainly; must
不 bù
HSK 1
no, not; un-; negative prefix
可 kě
HSK 2
may, can, -able; possibly
少 shǎo
HSK 1
few, less, inadequate