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
Trouba opened the scoring in the first period with an undefended slap shot after an egregious Blackhawks turnover.
—
CBS News, 7 Dec. 2025
Mark Collins, who was born and raised in Newfoundland, Canada, said Canadians have long treasured their friendship with the United States and the fact that the US-Canada border is the longest undefended border on the planet.
—Matt Egan, CNN Money, 13 Oct. 2025
Even with changes that came after the 2001 terrorist attacks, Abdool, noting the reputation of the longest undefended border in the world, said the experience of traveling back and forth between the United States and Canada wasn’t like crossing other international borders.
—Eric D. Lawrence, Freep.com, 16 May 2025
Like the global undersea cable network, the United States’ deep-water drilling infrastructure is rapidly expanding while remaining almost entirely undefended.
—Robert Martinage, Foreign Affairs, 1 Jan. 2015
See All Example Sentences for undefended
CBS News, 7 Dec. 2025
Mark Collins, who was born and raised in Newfoundland, Canada, said Canadians have long treasured their friendship with the United States and the fact that the US-Canada border is the longest undefended border on the planet.
—Matt Egan, CNN Money, 13 Oct. 2025
Even with changes that came after the 2001 terrorist attacks, Abdool, noting the reputation of the longest undefended border in the world, said the experience of traveling back and forth between the United States and Canada wasn’t like crossing other international borders.
—Eric D. Lawrence, Freep.com, 16 May 2025
Like the global undersea cable network, the United States’ deep-water drilling infrastructure is rapidly expanding while remaining almost entirely undefended.
—Robert Martinage, Foreign Affairs, 1 Jan. 2015
See All Example Sentences for undefended
Recent Examples of Synonyms for undefended
Adjective
-
That combination of curiosity and lack of awareness or sense of danger makes this age group particularly vulnerable.—
Katia Hetter,
CNN Money,
1 May 2026
-
Villa can be vulnerable to cheap giveaways in midfield, so Emery moved Morgan Rogers alongside Watkins up front and in the inside-right channel, higher upfield and not in central or deep positions where he can be swarmed.—
Jacob Tanswell,
New York Times,
1 May 2026
Adjective
-
Punk appeared helpless as Reigns picked him up.—
Ryan Gaydos,
FOXNews.com,
20 Apr. 2026
-
The show’s name referred to their self-identification as helpless babies overwhelmed by the pressures of modernity, comforted only by coating themselves in fancy serums and moisturizers to recreate the peaceful, placental insulation of the womb.—
Literary Hub,
Literary Hub,
9 Apr. 2026
Adjective
-
The Sabres could be susceptible to speed with the way their defensemen push it in the offensive zone.—
Stephen Conroy,
Hartford Courant,
25 Apr. 2026
-
Leaves weakened by pests or disease would be susceptible to frost damage, but burgundy foliage is not affected by such stressors.—
Joshua Siskin,
Oc Register,
25 Apr. 2026
Adjective
-
In Hendrix's case, his intestines, spleen, liver and stomach were outside of his body, unprotected.—
Charmaine Patterson,
PEOPLE,
28 Apr. 2026
-
Roosevelt found the constant security presence tiresome, however, and would sometimes slip away for unprotected hikes or horseback rides in Washington’s Rock Creek Park, according to the White House Historical Association.—
ABC News,
ABC News,
27 Apr. 2026
Cite this Entry
“Undefended.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefended. Accessed 2 May. 2026.
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