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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Light: Some investors worry mid-caps are more vulnerable to market volatility.—
Larry Light,
Forbes.com,
8 Aug. 2025
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Pregnant people are uniquely vulnerable to chemical exposure and women are disproportionately exposed to toxic compounds, including through beauty and menstrual products.—
Lisa Song,
ProPublica,
7 Aug. 2025
Adjective
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Not long after, Brady looked helpless on his final snap as a Patriot, standing at the 1-yard line with nine seconds left because of that maneuver, which Stretch stole from Brady’s head coach and turned against them both.—
Andrew Callahan,
Boston Herald,
7 Aug. 2025
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As for the Aces, Vegas has lost two in a row and looked helpless last time out, losing 109-78 to the Minnesota Lynx.—
Kilty Cleary,
MSNBC Newsweek,
27 July 2025
Adjective
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However, this preference puts the species at risk for habitat loss as these areas are often susceptible to human disturbances, according to the study.—
Lauren Liebhaber,
Miami Herald,
15 Aug. 2025
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Long-term effects of alcohol can also lead to high blood pressure, heart disease, liver disease and a weakened immune system that can make individuals susceptible to getting infections.—
Omer Awan,
Forbes.com,
15 Aug. 2025
Adjective
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In addition to absorbing Highsmith’s $5.6 million expiring contract, the Nets acquired an unprotected 2032 second-round pick from Miami while sending a 2026 second-round pick, protected from No. 31 to No. 55, to the Heat, per the team.—
C.J. Holmes,
New York Daily News,
15 Aug. 2025
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The Nuggets sent Porter to the Brooklyn Nets, along with an unprotected 2032 first-round draft pick, for Cam Johnson.—
Corey Masisak,
Denver Post,
14 Aug. 2025
Cite this Entry
“Undefended.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefended. Accessed 20 Aug. 2025.
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