vulnerable

American  

[vuhl-ner-uh-buhl] / ˈvʌl nər ə bəl /

adjective

1. capable of or susceptible to being attacked, damaged, or hurt.

   a vulnerable part of the body;

   vulnerable to predators;

   a company vulnerable to a hostile takeover.

2. open to moral attack, criticism, temptation, etc..

   That is an argument vulnerable to refutation.

   He is vulnerable to bribery.

3. (of a place) open to assault; difficult to defend.

   a vulnerable bridge.

4. willing to show emotion or to allow one’s weaknesses to be seen or known.

   Men and boys are rarely seen as vulnerable.

5. (of a person or population) needing supportive or protective social services and community resources because of advanced age, poverty, disability, etc.

6. Bridge. having won one of the games of a rubber.

7. Biology, Ecology. (of a threatened plant or animal species) likely to be classified endangered in the near future unless circumstances that threaten reproduction and survival improve, as categorized by the IUCN Red List: VU

   At least 15 percent of our vulnerable reptiles are turtles.

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vulnerable British  

/ ˈvʌlnərəbəl /

adjective

1. capable of being physically or emotionally wounded or hurt

2. open to temptation, persuasion, censure, etc

3. liable or exposed to disease, disaster, etc

4. military liable or exposed to attack

5. bridge (of a side who have won one game towards rubber) subject to increased bonuses or penalties

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Other Word Forms

• unvulnerable adjective
• vulnerability noun
• vulnerableness noun
• vulnerably adverb

Etymology

Origin of vulnerable

First recorded in 1610–20; from Late Latin vulnerābilis “injurious, wounding,” equivalent to Latin vulnerā(re) “to wound” + -bilis; -ble

Example Sentences

The head of a prominent anti-disinformation watchdog has warned of the dangers posed by AI chatbots, saying children are particularly vulnerable.

From Barron's • Apr. 10, 2026

Fresh produce is particularly vulnerable to rising costs because it depends on rapid, temperature‑controlled supply chains.

From BBC • Apr. 10, 2026

I think that there’s something vulnerable about all that taking place outside.

From Los Angeles Times • Apr. 9, 2026

The agency this year launched a pilot program to require prior authorization in traditional Medicare for treatments that are especially vulnerable to fraud.

From The Wall Street Journal • Apr. 9, 2026

And it got me where I was most vulnerable.

From "Ida B" by Katherine Hannigan

Related Words

• accessible
• defenseless
• exposed
• liable
• ready
• sensitive
• susceptible
• unsafe
• weak