必不可少
Traditional form:
必不可少
Pinyin (reading):
bìbùkěshǎo
Definitions:
- absolutely necessary
- indispensable
- essential
Characters:
- 必 - surely, certainly; must; will
- 不 - no, not, un-; negative prefix
- 可 - may, can, -able; possibly
- 少 - few, little; less; inadequate
Traditional characters: