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
Our two nations enjoy the world’s longest undefended border, largest trading partnership, and nearly a century of military cooperation, from the beaches of D-Day to the fight against al-Qaeda in Afghanistan.
—
Ian Cooper, Sun Sentinel, 5 May 2025
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
See All Example Sentences for undefended
Ian Cooper, Sun Sentinel, 5 May 2025
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
See All Example Sentences for undefended
Recent Examples of Synonyms for undefended
Adjective
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His full project showcases his vivid, vulnerable songwriting, cementing Slone as one of country music’s most compelling new voices.—
Jessica Nicholson,
Billboard,
3 Nov. 2025
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Mackinac Bridge officials recorded the highest wind gust Monday morning, 49 mph, prompting an advisory and escorts across the span for vulnerable vehicles like motorcycles, pickup trucks with campers and other high-profile vehicles.—
Sarah Moore,
Freep.com,
3 Nov. 2025
Adjective
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These brawls further eroded democratic norms, while driving voters away from left-wing and moderate parties who seemed helpless to halt them.—
Time,
Time,
23 Oct. 2025
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She was resigned to her fate, helpless with indignation.—
Jack O'Connor,
Outdoor Life,
23 Oct. 2025
Adjective
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The deterioration in the labor market has been concentrated in payroll employment, which is the [datapoint] that is the most susceptible to demographic and immigration changes.—
Liz Hoffman,
semafor.com,
4 Nov. 2025
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However, Arizona's hot and dry desert climate made Gilbert susceptible to drought and wildfires, causing the low ranking in natural disaster risk.—
Paige Moore,
AZCentral.com,
4 Nov. 2025
Adjective
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Containers of tomato sauce sat uncovered and unprotected in the walk-in cooler.—
David J. Neal,
Miami Herald,
31 Oct. 2025
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Doctors warn that there is no safe level of asbestos exposure, and that even short, unprotected demolition work can damage the lungs and increase the risk of developing mesothelioma, a cancer of the lining of the lungs.—
Dr. Mark Abdelmalek,
ABC News,
30 Oct. 2025
Cite this Entry
“Undefended.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefended. Accessed 6 Nov. 2025.
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