as in vulnerable
lacking protection from danger or resistance against attack
the cowardly soldiers fled, leaving the palace undefended
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Example Sentences
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Recent Examples of undefended
Ukraine says that would amount to surrender and leave it undefended if Moscow attacks again.
—
USA Today, 22 Apr. 2025
For more than a century, the U.S. and Canada built a close, prosperous partnership—standing together in war, mutually fueling their economies through trade, and maintaining the world's longest undefended border.
—Faisal Kutty, Newsweek, 10 Mar. 2025
Trump’s aggressive tariffs may undermine another of his objectives — countering the dangers posed by a (largely) undefended Greenland, an autonomous Danish territory, at a time when China and Russia are taking an increasing interest in the Arctic.
—The Editors, National Review, 7 Mar. 2025
Zelensky said Kursk was a major strategy in the war effort, with the aim being to divert Russian troops from the main fighting in eastern Ukraine while also taking prisoners, destroying Russia’s military assets and proving Moscow was undefended.
—Brad Dress, The Hill, 5 Jan. 2025
See All Example Sentences for undefended
USA Today, 22 Apr. 2025
For more than a century, the U.S. and Canada built a close, prosperous partnership—standing together in war, mutually fueling their economies through trade, and maintaining the world's longest undefended border.
—Faisal Kutty, Newsweek, 10 Mar. 2025
Trump’s aggressive tariffs may undermine another of his objectives — countering the dangers posed by a (largely) undefended Greenland, an autonomous Danish territory, at a time when China and Russia are taking an increasing interest in the Arctic.
—The Editors, National Review, 7 Mar. 2025
Zelensky said Kursk was a major strategy in the war effort, with the aim being to divert Russian troops from the main fighting in eastern Ukraine while also taking prisoners, destroying Russia’s military assets and proving Moscow was undefended.
—Brad Dress, The Hill, 5 Jan. 2025
See All Example Sentences for undefended
Recent Examples of Synonyms for undefended
Adjective
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This is about weaponizing fear into policy to target the vulnerable communities to divide us and undermine the very fabric of our society.—
Robert Schmad,
The Washington Examiner,
27 Aug. 2025
-
For example, SpaceX removed some heat-shield tiles from the Flight 8 upper stage to stress-test certain vulnerable areas.—
Mike Wall,
Space.com,
26 Aug. 2025
Adjective
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This burden of additional responsibilities and emotional labor with less resources lead many women to feel helpless, leaving divorce as the only escape.—
Mark Travers,
Forbes.com,
6 Sep. 2025
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The sunbathers of sleepy Amity Bay are helpless against the unexpected great white shark that hunts their coasts; Spielberg’s talent for suspense, effective horror shocks, and ingenious reinvention of the classic animal-attack movie remain as impressive as ever.—
Christina Newland,
Vulture,
5 Sep. 2025
Adjective
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However, due to space constraints, not all instruments could fit inside the titanium vault, and the ones that couldn’t would be more susceptible to the inevitable degradation that would ensue from being exposed to this radiation-rich environment.—
Ethan Siegel,
Big Think,
3 Sep. 2025
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This finding raises the possibility that mammoths, as close relatives of modern elephants, might have been susceptible to similar infections.—
Mrigakshi Dixit,
Interesting Engineering,
2 Sep. 2025
Adjective
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No little boy or girl should feel unsafe or unprotected while changing in school.—
Georgea Kovanis,
Freep.com,
4 Sep. 2025
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Equally worrying are the implications for working people across the UK, who may now be left unprotected from up front charges by similar platforms elsewhere in the growing gig economy.—
Max Goldbart,
Deadline,
3 Sep. 2025
Cite this Entry
“Undefended.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefended. Accessed 9 Sep. 2025.
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