Vulnerable
/vˈʌlnərəbəl/
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Definition
(adj) More or most likely to be exposed to the chance of being attacked or harmed, either physically or emotionally.
Sentence Examples
Mr Smith is vulnerable to this kind of criticism.
The balance of nature is very vulnerable.
CEFR Practice Quiz
Children and elderly people are often the most ____ groups during a major and sudden natural disaster today.