Definition of uncharted in US English:

uncharted

adjective

  • (of an area of land or sea) not mapped or surveyed.

    ‘an uncharted region of space’
    figurative ‘the present study is a foray into uncharted territory’
    • ‘All that was necessary to test that hypothesis was to get on a ship and go to one of these uncharted areas and see.’
    • ‘This year's Undead is clearly the work of Jackson disciples, but it also heads into uncharted territory.’
    • ‘For a professional explorer to stumble upon such uncharted territory can be very chastening.’
    • ‘On top of that, the question of involving the private service providers had remained an uncharted field.’
    • ‘Twice more he struck as if he was securing a flagpole into the soil of a previously uncharted land.’
    • ‘Proulx is interested in the uncharted territory between American kitsch and genius.’
    • ‘Are the farmers happy to go forward into these companies, which everybody has said go into uncharted territory?’
    • ‘Keighley visited uncharted territory at Middlesborough based Acklam in their Yorkshire Shield second round tie.’
    • ‘We were in uncharted territory and sought out the most conservative response.’
    • ‘Reaching the last 16 at Wimbledon was very much uncharted territory and the hard court season proved even better.’
    • ‘The difference between now and the lead-up to the Monaghan match is that they are no longer in uncharted territory.’
    • ‘The frontier was not only physical; it was also legal - uncharted legal land.’
    • ‘So again, I'd stress that we're going into uncharted territory with reefs and the environment.’
    • ‘It requires going into uncharted areas that may or may not be popular.’
    • ‘It was time to delve into uncharted territory: the workings of the handle itself.’
    • ‘The stakes are terribly high as operators enter uncharted territory in the broadband world.’
    • ‘It is acknowledged that it would be better if more examples could be located, especially as this is relatively uncharted territory.’
    • ‘For we are out there in virtual space, in virtual time, and in my mind's eye those are dark uncharted zones.’
    • ‘Greco's dance is not an easy option, living as it does like a Beckett character in strange, uncharted territory.’
    • ‘They play it with the enthusiasm of pioneers coming upon uncharted and unclaimed land.’
    unexplored, untravelled, undiscovered, unresearched, unplumbed, unfamiliar, unknown, strange
    View synonyms

Usage

Uncharted means ‘not yet mapped or surveyed.’ Especially in the phrase uncharted territory, it is confused with unchartered, a far less common word that means ‘not having a charter or written constitution.’ Unchartered territory constitutes around 10 percent of the total citations for the phrase in the Oxford English Corpus

Pronunciation

uncharted

/ˌənˈCHärdəd//ˌənˈtʃɑrdəd/