un·​de·​fend·​ed | \ ˌən-di-ˈfen-dəd How to pronounce undefended (audio) \

Definition of undefended

: not guarded or protected : not defended left the goal undefended an undefended frontier/border

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Examples of undefended in a Sentence

Recent Examples on the Web

But those feelings of brotherhood have long been evident between America and Canada itself—as neighbours, friends and allies who share the world’s longest undefended border. The Economist, "CanadaCanadians must decide if they want to remain a liberal beacon," 25 July 2019 Will the words ultimately be remembered for how the U.S. left its loyal friends undefended? WSJ, "Like Obama, Trump Blames His Syria Backout on Politics," 2 Jan. 2019 My withdrawal comes in the wake of personal attacks that, left undefended, would have made my leading USAG a liability for the organization. Rachel Bachman, WSJ, "USA Gymnastics Interim CEO Mary Bono Resigns," 16 Oct. 2018 OpenAI repeatedly targeted Roshan, a tactic that sometimes paid off (giving key heroes extra lives), but other times left their home territory undefended, giving the humans — a team of pro gamers from South America named paiN — a chance to dig in. James Vincent, The Verge, "Humans grab victory in first of three Dota 2 matches against OpenAI," 23 Aug. 2018 One theory is that Adm. Isoroku Yamamoto, commander of Japan’s navy, attacked the undefended islands to divert U.S. ships from the Battle of Midway and thereby crush the depleted force remaining. Alex Horton, Washington Post, "Thousands of Japanese fought in a bloody World War II battle for the Aleutians. Only 28 survived.," 24 May 2018 One woman invoked the riots that rocked the city in 1992, saying that the same neighborhood had been left undefended by police during the unrest. Emily Alpert Reyes, latimes.com, "Amid booing, Koreatown shelter plan moves forward at City Hall," 22 May 2018 That alignment left the entire left side of the infield unoccupied and undefended for any ground ball. Jeff Wilson, star-telegram, "Getting swing in sync or bunting for hits? Rangers have answer for Gallo vs. Astros' shift | Fort Worth Star-Telegram," 30 Mar. 2018 Athletics shortstop Marcus Semien then singled into an undefended center field for a 6-5 A’s win. John Hickey, USA TODAY, "Extra long debut comes and goes for Angels' Shohei Ohtani," 29 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'undefended.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of undefended

1564, in the meaning defined above

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Statistics for undefended

Last Updated

10 Aug 2019

Look-up Popularity

Time Traveler for undefended

The first known use of undefended was in 1564

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More Definitions for undefended



English Language Learners Definition of undefended

: not protected or defended

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Comments on undefended

What made you want to look up undefended? Please tell us where you read or heard it (including the quote, if possible).


a usually brief trip or an expedition

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