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Synonyms

uncharted

American  
[uhn-chahr-tid] / ʌnˈtʃɑr tɪd /

adjective

  1. not shown or located on a map; unexplored; unknown, as a place or region.

    the uncharted depths of space.


uncharted British  
/ ʌnˈtʃɑːtɪd /

adjective

  1. (of a physical or nonphysical region or area) not yet mapped, surveyed, or investigated

    uncharted waters

    the uncharted depths of the mind

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What’s the difference between uncharted and unchartered? Uncharted means unexplored or unmapped, as in uncharted territory or uncharted waters. Unchartered means not having (or not done under) a charter or some other kind of official authorization, as in an unchartered flight. It’s sometimes used to mean unauthorized or lawless, as in unchartered activity. The chart in uncharted refers to a map, but charted is not commonly used as an adjective—most people would say mapped. In contrast, both unchartered and chartered (meaning having a charter or officially authorized) are used. The two words are often used in much different contexts, but there are some cases where both could apply. For example, a remote parcel of land may be both uncharted (unmapped) and unchartered (not bound by any official charters or laws). Here’s an example of uncharted and unchartered used correctly in a sentence. Example: The movie is an adventure about a group of teens who take a secret, unchartered flight to explore an uncharted island. Want to learn more? Read the full breakdown of the difference between uncharted and unchartered.

Etymology

Origin of uncharted

First recorded in 1840–50; un- 1 + chart + -ed 2

Explanation

If a place is uncharted, it means it isn't found on any map, like the uncharted wilderness settlers found when heading west, or, more figuratively — the uncharted territory of a new strategy. The word charted originated in the 1570s, when chart was the name navigators used for maps. So when navigators reached a place not found on their charts, they called the place uncharted. Uncharted also can be used in a figurative sense to describe the start of a new experience, such as the uncharted territory of talking about a difficult subject for the first time.

Keep Reading on Vocabulary.com

Vocabulary lists containing uncharted

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The results are also significant for the MARUM-based Cluster of Excellence "The Ocean Floor -- Earth's Uncharted Interface."

From Science Daily • Dec. 30, 2025

“It’s an iceberg phenomenon,” Dalmau says: Uncharted pathology lurks below the surface.

From Science Magazine • May 15, 2024

Other fan-favorite films that are critically panned but positively received by audiences include the Tom Holland-led "Uncharted" and the iconic children's film "Spy Kids."

From Salon • Sep. 7, 2023

Of the three songs we did together, one is more in my and Howard’s wheelhouse, “Wild Uncharted Waters.”

From New York Times • May 29, 2023

We knew that men would not follow us, for they never entered the Uncharted Forest.

From Anthem by Rand, Ayn

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