as in vulnerable
lacking protection from danger or resistance against attack
the cowardly soldiers fled, leaving the palace undefended
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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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Meanwhile, small businesses have less power and influence on trade policy— and are often more vulnerable to the impacts of tariffs.—
Vanessa Yurkevich,
CNN Money,
29 July 2025
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Avoid direct sun exposure: Protect yourself and check on vulnerable relatives and neighbors.—
NC Weather Bot,
Charlotte Observer,
29 July 2025
Adjective
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When employees bring problems to their leaders, a dangerous dynamic often emerges, one that turns capable professionals into helpless children and transforms managers into overbearing parents.—
Mark Murphy,
Forbes.com,
30 July 2025
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For the first time in his life, the great shark couldn’t swim freely and, panic-stricken, bolted clear of his world and there was only emptiness, and his tail and pectoral fins were helpless in the void.—
Pat Smith,
Outdoor Life,
24 July 2025
Adjective
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Alligator Alcatraz, which sits inside Big Cypress National Preserve, is susceptible to a hurricane strike from nearly any direction.—
Bill Kearney,
Sun Sentinel,
2 Aug. 2025
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Not to mention, antibiotics aren’t always effective at killing drug-resistant bugs, and each UTI leaves you more susceptible to future infections, creating a vicious cycle.—
Erica Sloan,
SELF,
1 Aug. 2025
Adjective
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In the space that lanes designed just for cars used to occupy, the city has painted wide unprotected bike lanes.—
Ariane Lange,
Sacbee.com,
30 July 2025
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Ultimately, Edward’s new widow Queen Elizabeth (Gabriella Goldstein) is forced to witness Richard’s searing cruelty as Edward’s death ensures the queen and her sons are now an unprotected target.—
David John Chávez,
Mercury News,
30 July 2025
Cite this Entry
“Undefended.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefended. Accessed 11 Aug. 2025.
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