Definition of "unchartered" [unchartered]

• Not chartered; not on the map (adjective)
• Unprecedented; unknown (adjective)

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• ""We're in unchartered territory," EnCap's lawyer wrote."
• "Predators in unchartered territory, they are starting to make their rivalry with the Columbus Blue Jackets very one-sided."
• "We can't let him go too much, he's in unchartered waters."