SYNONYMS AND RELATED EXPRESSIONS
unprecedented
adjective
Having no known previous example.
Local English device voice, when available. This is not a recorded dictionary pronunciation.
Without an earlier example
Closest synonyms
Related words and expressions
These extend or explain the idea and may require a different sentence structure.
Usage distinction
Return to topUnprecedented concerns the absence of a prior example. Unparalleled means without an equal, extraordinary describes unusual degree, and groundbreaking adds influence on later developments.
CHECK THE MEANING IN CONTEXT
See unprecedented in use
The school described the cancellation of every performance as unprecedented.
An unprecedented collaboration joined all six student clubs for the first time in the exhibition's recorded history.
Compare an alternative with the original word in each passage. Shared meanings do not make every pair interchangeable.
Synonym reference scope and sources
The groups distinguish the senses selected for this study entry. Closest synonyms and broader related expressions have separate labels. The listed sources support lexical selection; not every phrase is a direct quotation from a source.
How the synonym reference was prepared / WordNet 3.0 license