uncharted territory

American  

[uhn-chahr-tid ter-i-tawr-ee] / ˌʌnˈtʃɑr tɪd ˈtɛr ɪˌtɔr i /

noun

1. an unfamiliar area or situation, especially one that has or seems to have no maps or guidelines.

   At that time, the American West was uncharted territory.

   We suddenly found ourselves in uncharted territory as the parents of a medically fragile child.

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Etymology

Origin of uncharted territory

First recorded in 1900–05

Example Sentences

“About 12 seconds into the opening night of Sphere with U2 back in ‘23, I thought ‘We have to do this, it’s completely uncharted territory!’

From Los Angeles Times

"We have entered a new field of research here, uncharted territory where many exciting discoveries are likely to be made," says Varykhalov.

From Science Daily

“Hoda’s joining us this morning as our ‘Today’ family continues to navigate uncharted territory balancing the updates on the search for Savannah’s mom with all the other stories of the day like we normally do, but we know things are far from normal right now,” co-host Craig Melvin said Monday.

From Los Angeles Times

"We're in uncharted territory here," Minnesota Bureau of Criminal Apprehension Superintendent Drew Evans said.

From Barron's

Legal experts say this will be largely uncharted territory.

From The Wall Street Journal