- not authorized by charter; unregulated
- unauthorized, lawless, or irregular
WordReference Random House Unabridged Dictionary of American English © 2026
un•char•tered
(un chär′tərd),USA pronunciation adj.
- without a charter.
- without regulation;
lawless.
- un-1 + charter + -ed2 1795–1805
Collins Concise English Dictionary © HarperCollins Publishers::
unchartered /ʌnˈtʃɑːtəd/ adj