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irreplaceable

C2
Fairly common

Pronunciation

UK

  • /ɪrɪplˈeɪsəbəl/

US

  • /ˌɪrəˈpleɪsəbəl/

Meanings

Adjective

  1. too unique, valuable, or important to be replaced

Beyond the definition

Something irreplaceable isn't just important—it's so special that you could never find another thing exactly like it. Think of a grandmother's handwritten recipe, a childhood photograph, or the bond with a beloved pet. These aren't things you can simply buy new if they are lost; their value lies in their unique history and emotional connection.

The word highlights that something cannot be truly "replaced"—meaning substituted with an equivalent. A rare artifact discovered during an archaeological dig is irreplaceable, as are the memories of a perfect summer day. Sometimes, a person is described as irreplaceable—someone whose unique presence and contributions would be deeply missed because no one else could fill their shoes.

Examples

  1. 1

    Sentimental value

    That necklace is irreplaceable to me because it belonged to my grandmother.

  2. 2

    Team member

    She became an irreplaceable member of the team.

  3. 3

    Cultural artifacts

    The museum keeps its irreplaceable manuscripts in a special climate-controlled room.

  4. 4

    Crisis leadership

    His calm judgment was irreplaceable during the crisis.

More examples
  1. 5

    Public spaces

    For many students, the local library is irreplaceable as a quiet place to study.

  2. 6

    Workplace saying

    People like to say that no one is irreplaceable, but the office was never the same after Maria left.

    • Usageno one is irreplaceable

      any person can eventually be replaced, often said about work

See also

Similar

Shades of meaning

  • unique
  • nonfungible
  • one of a kind

Contrast

Do not confuse

Used with (collocations)

  • irreplaceable part of
  • irreplaceable loss
  • irreplaceable role
  • irreplaceable memories

Word family

Explore

  • substitutability
  • sentimental value

Forms and spellings

1 form open this card.

Main spelling

  • irreplaceableadjective