uncharted territory

English

Noun

uncharted territory (countable and uncountable, plural uncharted territories)

1. An area of land that has not been surveyed.
2. (figurative) Synonym of uncharted water (an unknown situation).
   • 2021 July 23, Ellie Robinson, “Coldplay shoot for the stars with their cinematic new track ‘Coloratura’”, in NME‎^[1]:

     Echoing the rhapsodic prog-rock vibes of Pink Floyd circa ‘Dark Side Of The Moon’, the new track marks an ambitious step into uncharted territory for Coldplay, though not eschewing too far from the alt-rockers’ standard fare.

   • 2023 May 17, Fiona Harvey, “World likely to breach 1.5C climate threshold by 2027, scientists warn”, in The Guardian‎^[2], →ISSN:

     UN agency says El Niño and human-induced climate breakdown could combine to push temperatures into ‘uncharted territory’[.]