uncharted[adjective]Synonyms: unexplored, strange, undiscovered, unfamiliar, unknown
[TahlilGaran] English Synonym Dictionary ▲
un‧chart‧ed AC /ʌnˈtʃɑːtəd, ʌnˈtʃɑːtɪd $ -ɑːr-/
adjective1. uncharted waters/territory/area etc a situation or activity that you have never experienced or tried before:
This new project will take us into uncharted territory.2. not marked on any maps:
an uncharted island [TahlilGaran] Dictionary of Contemporary English ▲