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unstable - definition and synonyms


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adjective unstable pronunciation in British English /ʌnˈsteɪb(ə)l/
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  1. 1
    an unstable person becomes angry or upset often and very suddenly

    My father wasn’t a bad man, but he was emotionally unstable.

  2. 3
    an unstable system, situation, or relationship often has serious problems

    an unstable economy

  3. 4
    chemistry an unstable substance reacts very easily with other chemical substances and can be dangerous
  4. 6
    physics an unstable object is likely to move or change because of the forces affecting it


used to describe something which is done more carefully and over a longer period of time …

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the practice of giving birth in the presence of several friends and relatives

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