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Unstable

ʌnˈsteɪbl

Unstable definitions
adjective
unstabler unstablest unstable
  1. likely to give way; not stable

    "the unstable cliff tops"

    • likely to change or fail; not firmly established

      "some students found themselves in unstable housing situations"

  2. prone to mental health issues or sudden changes of mood

    "jailers knew both men were violent and unstable"