as in vulnerable
lacking protection from danger or resistance against attack
the cowardly soldiers fled, leaving the palace undefended
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Recent Examples of undefended
Every poorly thrown or dropped pass, every penalty, every sloppy or missed tackle, every undefended pass put the team in a position to need a field goal to win.
—
Reader Commentary, Baltimore Sun, 5 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
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
See All Example Sentences for undefended
Reader Commentary, Baltimore Sun, 5 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
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
See All Example Sentences for undefended
Recent Examples of Synonyms for undefended
Adjective
-
McGarry, while supportive of the county's initial steps, remains skeptical that the ordinance goes far enough to protect the most vulnerable residents.—
Joan Murray,
CBS News,
19 June 2026
-
So, to see an Asian woman being vulnerable and trying to put herself out there, even though she's been hurt and has trust issues.—
Laura Sirikul,
Forbes.com,
19 June 2026
Adjective
-
Over the course of a 60-yard run, Maradona danced past opponents, escaped challenges and left English defenders helpless before beating the goalkeeper with a clinical finish.—
Cesar R. Torres,
The Conversation,
17 June 2026
-
Arturo has grown used to driving by traffic stops, then circling back to move his friends’ and neighbors’ abandoned cars to their helpless families left behind.—
Karen Valby,
Vanity Fair,
16 June 2026
Adjective
-
Tomatoes are susceptible to numerous diseases and environmental challenges that can impact plant growth and fruit production.—
Kim Toscano,
Southern Living,
21 June 2026
-
Wood’s career was derailed by injuries, leading to worries of hard throwers being susceptible to blowing out pitching arms.—
ABC News,
ABC News,
18 June 2026
Adjective
-
If your cat or dog is outdoors and unprotected, fleas hitch a ride and come indoors with them.—
Arricca Elin SanSone,
Southern Living,
23 June 2026
-
The Celtics’ final offer to the Bucks included 29-year-old five-time NBA All-Star Jaylen Brown and two unprotected first-round picks, according to Charania.—
Anthony Chiang,
Miami Herald,
23 June 2026
Cite this Entry
“Undefended.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/undefended. Accessed 25 Jun. 2026.
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