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Synonyms

undefended

British  
/ ˌʌndɪˈfɛndɪd /

adjective

  1. not having people to provide resistance against danger, attack, or harm

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As the home team sprung forward from midfield, Gouri found Mason Greenwood racing through an undefended inside-right channel.

From Barron's • Feb. 3, 2026

Nicias, the peacemaker of 421 B.C., first opposes raiding Sicily because it would leave Athens undefended.

From The Wall Street Journal • Nov. 21, 2025

Canada and the US share the world's longest undefended border.

From BBC • Jan. 7, 2025

At Amnya, her team also noted a possible sign of social stratification, another development often linked to agriculture: a cluster of houses that sat, undefended, outside the palisade.

From Science Magazine • Nov. 29, 2023

But when she looked, the white knight was gone, the bridge across the dry moat down but undefended.

From "A Clash of Kings" by George R.R. Martin

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