IPA: /ʌnˈtʃɑːrtɪd/
KK: /ʌnˈtʃɑrtɪd/
Describing areas or things that have not been mapped or explored, often referring to unknown or unfamiliar places.
The explorers set out to discover uncharted territories in the remote jungle.
Uncharted → It is formed from "un-" (meaning not) and "charted" (from the Old French *charte*, meaning a map or document). The word "uncharted" refers to areas that are not mapped or documented, indicating unknown territory.
Think of 'not' ('un-') having a 'map' ('charted') — that's why uncharted means an area without a map.