uncharted

[ uhn-chahr-tid ]

/ ʌnˈtʃɑr tɪd /

not shown or located on a map; unexplored; unknown, as a place or region: the uncharted depths of space.

Origin of uncharted

First recorded in 1840–50; un-¹ + chart + -ed²

uncharted unchartered

But remember, this was uncharted territory for the FAA just as it was for Galactic.

Virgin Galactic’s Flight Path to Disaster: A Clash of High Risk and Hyperbole |Clive Irving |November 1, 2014 |DAILY BEAST
His new book looks at the most fascinating forgotten and uncharted spots.

Discovering Underground Labyrinths, Remote Cities, and More of the World’s Lost Places |Nina Strochlic |July 8, 2014 |DAILY BEAST
In Unruly Places, Bonnett has launched an investigation into uncharted, underground, and undiscovered worlds.

Discovering Underground Labyrinths, Remote Cities, and More of the World’s Lost Places |Nina Strochlic |July 8, 2014 |DAILY BEAST
“His leap towards me is as uncharted as mine to him,” he said.

Speed Read: 13 Juiciest Bits From Morrissey’s ‘Autobiography’ |Nico Hines |October 17, 2013 |DAILY BEAST

We shouldn't be encouraging the President to wade into further "uncharted constitutional territory."

Obama’s Debt Ceiling ‘Lincoln’ Option |Justin Green |December 3, 2012 |DAILY BEAST
And there are justifiable strandings in fogs, on uncharted seas, on dangerous shores, through treacherous tides.

The Mirror of the Sea |Joseph Conrad
And now Elliott, adorable Elliott, was to be marooned in this uncharted district for a whole year.

The Camerons of Highboro |Beth B. Gilchrist
A great cold wave had swept in off the uncharted seas and flooded my little beach, and covered it with wreckage.

The Light in the Clearing |Irving Bacheller
A pilot was necessary to guide the Albert along the uncharted coast of Labrador.

The Story of Grenfell of the Labrador |Dillon Wallace
Alec, but yesterday Joan's typical idler, had fathomed some uncharted deep in the mysterious art of swaying his fellow men.

A Son of the Immortals |Louis Tracy

uncharted

/ (ʌnˈtʃɑːtɪd) /

(of a physical or nonphysical region or area) not yet mapped, surveyed, or investigated uncharted waters; the uncharted depths of the mind