unregistered
adjective/ʌnˈrɛdʒɪstərd/
Frequency rank: #12,727 of 20,003 in the WORDED list (wordfreq data)
Meaning
not officially recorded or listed in an official register.

Example sentence
The car was stopped by police because it was unregistered.
Synonyms & related words
- unlicensed
- unofficial
- unauthorized
- unrecorded
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