Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Not registered.
  • v. Simple past tense and past participle of unregister.

from The Century Dictionary and Cyclopedia

  • Not registered; not recorded.

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

  • adj. not registered
  • adj. (a boat or vessel) not furnished with official documents
  • adj. (of animals) not recorded with or certified by an official breed association

Etymologies

un- +‎ registered (Wiktionary)
See unregister (Wiktionary)

Examples

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