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unprecedented

C1
Fairly common

Pronunciation

UK

  • /ʌnprˈɛsɪdəntɪd/

US

  • /ənˈprɛsɪˌdɛntɪd/

Meanings

Adjective

  1. never having happened, existed, or been done before

Beyond the definition

"Unprecedented" describes something that has never happened before. Think of a moment so unusual that nothing quite like it has happened in the past. It does not just mean "rare"; it means there is no earlier example to compare it to.

You might hear about an unprecedented heatwave, meaning temperatures are higher than ever recorded. Or a company might report unprecedented growth, meaning it has reached a level of success not seen before. The word often suggests that something important is happening, not just something unusual. It is frequently used for major events or turning points in history, politics, business, or technology.

Examples

  1. 1

    Hospital demand

    The hospital is dealing with unprecedented demand this winter.

  2. 2

    Water shortage

    The country is facing an unprecedented shortage of clean water.

  3. 3

    Climate science

    Scientists were alarmed by the unprecedented speed of the glacier's collapse.

  4. 4

    Company policy

    In an unprecedented move, the company gave all employees a month off.

    • Usagein an unprecedented move

      a common news phrase for an action that is very unusual

More examples
  1. 5

    Disaster damage

    The storm caused damage on an unprecedented scale across the region.

    • Phraseon an unprecedented scale

      at a size or level never seen before

See also

Similar

Shades of meaning

Contrast

Used with (collocations)

  • unprecedented event
  • unprecedented growth
  • unprecedented levels
  • an unprecedented move

Word family

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Forms and spellings

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Main spelling

  • unprecedentedadjective