irreplaceable

adjective

ir·​re·​place·​able ˌir-i-ˈplā-sə-bəl 

: not replaceable

an irreplaceable antique

irreplaceability

ˌir-i-ˌplā-sə-ˈbi-lə-tē 

noun

irreplaceableness

ˌir-i-ˈplā-sə-bəl-nəs 

noun

irreplaceably

ˌir-i-ˈplā-sə-blē 

adverb

Examples of irreplaceable in a Sentence

Recent Examples on the Web

Restart support should cover the actual costs of resuming valuable work, with urgency for long-running studies, irreplaceable biological resources and teams at risk of dispersing. — Carole Labonne, Washington Post, 8 Nov. 2026

Pitre plays a key role in the as the nickel cornerback, and his versatility at the position is somewhat irreplaceable in DeMeco Ryans’ scheme. — Peter Warren, Houston Chronicle, 8 Nov. 2026

Over the course of this case, ICE lost irreplaceable video from the office building after FBI agents told them to preserve it. — Charlotte Observer, 5 Nov. 2026

Fans across the world mourn the passing of a true and irreplaceable legend. — Emlyn Travis, Entertainment Weekly, 29 Oct. 2026

Word History

First Known Use

1807, in the meaning defined above

Rhymes for irreplaceable

• erasable
• replaceable
• untraceable
• traceable

Kids Definition

irreplaceable

adjective

ir·​re·​place·​able ˌir-i-ˈplā-sə-bəl 

: not replaceable

a museum full of irreplaceable works of art