undefended

adjective

un·​de·​fend·​ed ˌən-di-ˈfen-dəd How to pronounce undefended (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
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

Word History

First Known Use

1564, in the meaning defined above

Time Traveler
The first known use of undefended was in 1564

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Cite this Entry

“Undefended.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undefended. Accessed 10 Jun. 2025.

Last Updated: - Updated example sentences
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