undefended
adjective
un·de·fend·ed
ˌən-di-ˈfen-dəd 
: not guarded or protected : not defended
left the goal undefended
an undefended frontier/border
Examples of undefended in a Sentence
the cowardly soldiers fled, leaving the palace undefended
Recent Examples on the Web
Back then, America feared an armada of Soviet bombers laden with A-bombs barreling over the horizon, dodging our few anti-aircraft batteries, and dropping their deadly payloads on undefended American cities.
—
Barry Scott Zellen,
Hartford Courant,
22 Jan. 2026
The lack of range of Coastal Command aircraft left an undefended area known as the Mid-Atlantic Gap, rendering merchant shipping and their escorts without air cover and vulnerable to attack.
—
Mark Wood,
TheWeek,
7 Jan. 2026
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
See All Example Sentences for undefended
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Barry Scott Zellen,
Hartford Courant,
22 Jan. 2026
The lack of range of Coastal Command aircraft left an undefended area known as the Mid-Atlantic Gap, rendering merchant shipping and their escorts without air cover and vulnerable to attack.
—
Mark Wood,
TheWeek,
7 Jan. 2026
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
See All Example Sentences for undefended
Cite this Entry
“Undefended.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undefended. Accessed 5 Jul. 2026.
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