uncharted

adjective

un·​chart·​ed ˌən-ˈchär-təd 

: not recorded or plotted on a map, chart, or plan

an uncharted island

—often used figuratively

The discussion moved into uncharted territory/waters. [=moved into a new and unknown area]

Examples of uncharted in a Sentence

Recent Examples on the Web

Percy Jackson and the Olympians is setting sail for uncharted waters in season 3. — Emlyn Travis, Entertainment Weekly, 23 July 2026

Because a foreclosure tax is relatively uncharted territory in California, the effects are hard to predict, even among industry experts and pro-housing advocates. — Shomik Mukherjee, Mercury News, 19 July 2026

The dialogue, meanwhile, is played hilariously straight — good luck finding a laugh among these uncharted stars — and often consists of someone shouting another character's name. — Richard Edwards, Space.com, 17 July 2026

An uncharted exploration The spacecraft is capturing data about the rotation rates, orientations and shapes of frozen objects that orbit in the Kuiper Belt. — Ashley Strickland, CNN Money, 16 July 2026

Word History

First Known Use

1832, in the meaning defined above

Phrases Containing uncharted

• uncharted waters

Rhymes for uncharted

• departed
• halfhearted
• imparted
• kindhearted
• lighthearted
• restarted
• warmhearted
• wholehearted
• brokenhearted
• carted
• charted
• darted

Kids Definition

uncharted

adjective

un·​chart·​ed ˌən-ˈchärt-əd 

: not recorded or located on a map, chart, or plan : unknown

vast uncharted wilderness