English Reference
adjective

vulnerable

adj.
US /ˈvəɫnɝəbəɫ/ UK /vˈʌlnəɹəbəl/ vul·ner·a·ble

  1. 01 B2 Upper Intermediate

    easy to hurt or attack, either physically or emotionally.

    susceptible to physical or emotional attack or harm.

    Simple

    The small village was vulnerable to attacks because it had no walls.

    In context

    After the recent scandal, the politician felt increasingly vulnerable to criticism from both the media and his own party members.

    invulnerableprotectedresilient
  2. 02 C1 Advanced Technical Computing

    describes a computer or system that is not protected against hackers or viruses.

    susceptible to exploitation by malicious software or unauthorised users due to a flaw in code or design.

    Simple

    Old computers are often vulnerable to new types of viruses.

    In context

    The security audit revealed that the database was vulnerable to SQL injection attacks due to outdated encryption protocols.

    Usage

    Often used with the preposition 'to'.

  3. 03 C1 Advanced Technical Science

    describes a type of animal or plant that is likely to become endangered soon.

    categorised as being at high risk of extinction in the wild, though not yet critically endangered.

    Simple

    Giant pandas were once endangered, but now they are classified as vulnerable.

    In context

    Conservationists are working to protect the habitat of several vulnerable species before their population numbers drop to critical levels.

Usage vulnerable people · vulnerable communities · vulnerable to preventable

Experts tell BBC Verify pollution has spread from a ship attacked on 3 August and threatens vulnerable wildlife.

BBC News· 14 Aug 2026

A vulnerable girl took her life at 16 having faced terror charges and online grooming by neo-fascists.

The Guardian· 13 Aug 2026

From Late Latin vulnerābilis (“injurious, wounding”), from Latin vulnerō (“I wound”).

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

This entry
Origin Latin vulnerō
Level C1 · Advanced
Frequency Common
Updated