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English definition of “irreplaceable”

irreplaceable

adjective [not gradable]  /ˌɪr·ɪˈpleɪ·sə·bəl/ us  
too special, unusual, or valuable to replace with something else, or of which no others like it exist: irreplaceable documents No one on this team is irreplaceable, the new manager insisted.
(Definition of irreplaceable from the Cambridge Academic Content Dictionary © Cambridge University Press)
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