Definitions
- 1. absolutely necessary
- 2. indispensable
- 3. essential
Word relationships
Antonyms
2 itemsRelated words
1 itemSynonyms
1 itemUsage notes
Collocations
Used before nouns (必不可少的条件) or as predicate (这是必不可少的), not usually as standalone complement without 是.
Formality
Slightly formal; in casual speech, 一定 or 必须 are more common.
Example Sentences
1 shown水对生命是 必不可少 的。
Water is indispensable for life.
AI-generated examples are marked with this icon.