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from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Impossible to replace: irreplaceable antiques.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. That which cannot be replaced.

from The Century Dictionary and Cyclopedia

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

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

  • adj. impossible to replace


ir- +‎ replaceable (Wiktionary)



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