irreplaceability.

The inability to be adequately replaced for the relevant purpose.

Use it for

Words that belong together

• irreplaceability of a record
• perceived irreplaceability

On the page

The record’s irreplaceability followed from the absence of another contemporary account.

Perceived irreplaceability did not show that every part of the procedure lacked alternatives.

Usage notes

Primary category: academic / formal. Forms: Usually uncountable. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: requirements and constraints, institutional organization, formal assessment, system properties. Disciplines: academic writing, formal analysis, institutional studies. Commonness: moderately common.