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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Security That Protects Your Data With Windows 10 reaching its end-of-life, unpatched systems will become more vulnerable to attacks.—
PC Magazine,
PC Magazine,
30 Sep. 2025
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Both sides were vulnerable on transition, making unforced errors and conceding needless free kicks.—
Jacob Tanswell,
New York Times,
29 Sep. 2025
Adjective
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This is obvious enough in the contrast between the aggressive takedown in humor and the helpless surrender in tears.—
Big Think,
Big Think,
23 Sep. 2025
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The series also starred Portia de Rossi as the family's layabout daughter, Lindsay; David Cross as her aspiring actor husband, Tobias; Alia Shawkat as their teen daughter, Maeby; Jessica Walter as the family's elitist matriarch, Lucille; and Tony Hale as the dynasty's helpless youngest son, Buster.—
Wesley Stenzel,
Entertainment Weekly,
22 Sep. 2025
Adjective
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Common Pests & Plant Diseases Camellias are susceptible to several fungal diseases, the most serious of which are flower blight, root rot, and camellia dieback and canker.—
Kim Toscano,
Southern Living,
1 Oct. 2025
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This is the key reason why older adults are more susceptible to cancer and severe illness.—
Jocelyn Solis-Moreira,
Flow Space,
30 Sep. 2025
Adjective
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During his run as head coach at the University of Michigan, Edina native Mel Pearson noted that playing on the Gophers’ big ice caused many young defenders to stray farther and farther away from their own net, leaving the Wolverines’ goalie unprotected at times.—
Jess Myers,
Twin Cities,
27 Sep. 2025
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Prolonged, unprotected exposure to the high noise levels of a leaf vacuum can cause lasting hearing loss.—
BestReviews,
Mercury News,
26 Sep. 2025
Cite this Entry
“Undefended.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefended. Accessed 6 Oct. 2025.
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