Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Impossible to replace.

from The Century Dictionary.

  • Not replaceable; that cannot be replaced; not admitting of replacement or substitution.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective That which cannot be replaced.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective impossible to replace

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

ir- +‎ replaceable

Examples

Comments

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