+**Weakness** is a state or quality of being susceptible to [Failure](/wiki/failure) or lacking [Strength](/wiki/strength). It can manifest as a physical frailty, a mental vulnerability, or a flaw within a system.
+## See also
+- [Vulnerability](/wiki/vulnerability)
+- [Fragility](/wiki/fragility)
+- [Defect](/wiki/defect)
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