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