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

  • adj. Irresoluble.
  • adj. Impossible to separate into component parts; irreducible.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Impossible to resolve; insoluble.
  • adj. Impossible to separate into its component parts.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Incapable of being resolved; not separable into component parts.

from The Century Dictionary and Cyclopedia

  • Not resolvable; incapable of being resolved.


From ir- +‎ resolvable. (Wiktionary)



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