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unprecedented

/ʌnˈprɛsɪdənt/
IELTSAcademic
adjective

Never having happened before; unlike anything seen earlier. Often used for important events or new levels of scale or intensity. Suitable for formal and academic contexts.

  • The policy brought about unprecedented reform in the sector.
  • We are facing unprecedented challenges in climate action.

Adinary Nuance

Distinguish 'unprecedented' from near-synonyms like 'unique', 'unusual', and 'without precedent'. It is more formal and is preferred in academic and news contexts for describing events without prior example.

In other languages

Spanish
Sin precedente
Japanese
前例のない
Korean
전례 없는
Vietnamese
Chưa từng có
Chinese
史无前例的

Etymology

Not included — see a history dictionary for Latin roots and 20th-century rise in use.

Common phrases

unprecedented scaleunprecedented changeunprecedented timesreach an unprecedented level

Synonyms

Related words

Frequently asked questions

How is 'unprecedented' different from 'unique' and 'unusual'?
Is 'unprecedented' formal or informal in business writing?
Can you give an example sentence with 'unprecedented'?
It is formal and common in academic and news contexts.
What are common phrases using 'unprecedented'?
No common single-word synonym; use 'unique', 'unusual', or 'without precedent' depending on context.
Is 'unprecedented' used in business writing?
It is used in phrases like 'unprecedented scale' and 'unprecedented times'.