Needn't
//niːdn̩t// verb
verb ·Rare ·Advanced level
Definitions
Verb
- 1 Need not. British, auxiliary, formal, literary, negative
"I needn’t have washed the car: shortly after it started raining."
Synonyms
All synonymsExample
More examples"You needn't have seen him to the door."
Etymology
need + -n't.
Related phrases
More for "needn't"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.