unregistered

adjective

un·​reg·​is·​tered ˌən-ˈre-jə-stərd 

: not registered: such as

a

: not having entered one's name on a voting list

unregistered voters

b

: unrecorded or not filed in the place provided by law

an unregistered motor vehicle

c

: not recorded with or certified by an appropriate breeders' association

unregistered cattle

Synonyms of unregistered

• unlisted
• unrecorded
• undisclosed
• unidentified
• unspecified

Examples of unregistered in a Sentence

an unregistered car

Recent Examples on the Web

In June, Josie faced court on an unrelated charge after police found an unregistered silencer during a search of Oak Park Station. — Hilary Whiteman, CNN Money, 20 Sep. 2026

He's charged with OUI liquor, negligent operation of a motor vehicle, marked lanes violations and having an unregistered car. — Penny Kmitt, CBS News, 14 Sep. 2026

Officers also found several large shipping boxes containing precious metals, two unregistered firearms, and more than $105,000 in cash, according to the sheriff’s department. — Jaclyn Cosgrove, Los Angeles Times, 5 Sep. 2026

The group also said its eligible-but-unregistered reports contain limited contact information, not Social Security, driver’s license, or state identification numbers, and that only ERIC employees process member data. — Kaelan Deese, The Washington Examiner, 4 Sep. 2026

Word History

First Known Use

1603, in the meaning defined above

Rhymes for unregistered

• registered

Legal Definition

unregistered

adjective

un·​reg·​is·​tered

ˌən-ˈre-jə-stərd

: not registered

charged with operating an unregistered motor vehicle

see also unregistered security at security