English Reference

Word

vulnerability

Phoneticsvul·ner·a·bil·i·ty

US/ˌvəɫnɝəˈbɪɫɪti/

UK/vˌʌlnəɹəbˈɪlɪti/

Definitions

01emotional or physical weakness

B2

n. the state of being easily hurt or not protected, especially when you show your feelings.

n. the state of being susceptible to physical or emotional injury; often used in psychology to describe openness to others.

“Showing your vulnerability to a friend can actually make your relationship stronger.”

“The therapist argued that acknowledging one's vulnerability is a prerequisite for developing genuine emotional resilience in high-stress environments.”

Antonyms

resiliencestrengthinvulnerability

02a security flaw

C1 · Computing

n. a weakness in a computer system or a building that allows an attacker to get inside.

n. a specific weakness in a system's security or physical defences that can be exploited by a threat actor.

“The company released a software update to fix a major vulnerability in their app.”

“Cybersecurity experts identified a critical vulnerability in the server's encryption protocol that could have exposed sensitive user data to unauthorised access.”

Technical

Usage

Often used with the preposition 'in' or 'to'.

Synonyms

Real-World Examples

“The case garnered national attention for exposing pilot behaviour toward female flight attendants and the vulnerability of the scores of young women who have historically been the target demographic for the job.”
The Guardian · 12 Aug 2026
“In the OpenAI-Hugging Face incident, the AI attacked the sandbox itself, finding a vulnerability which let it access the internet and "go rogue".”
BBC News · 6 Aug 2026
“In our culture, we vilify vulnerability and valorise independence.”
The Guardian · 4 Aug 2026
“There is also the argument that getting off gas quicker reduces vulnerability to price shocks.”
BBC News · 15 Apr 2026

Etymology

From vulnerable + -ity.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Collocations

increase vulnerability

Word family

vulnerabilityNounvulnerableAdjective

Domains

ComputingSecurity

This entry

Level
C1 · Advanced
Frequency
Frequent
Updated

Scan code

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English Reference