unusable definition, meaning - what is unusable in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “unusable”

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unusable

adjective uk   us   /ʌnˈjuː.zə.bl̩/
Something that is unusable cannot be used, especially because it is broken or not safe: The normal supply of water has turned brown and unusable. The virus deletes files and corrupts essential core microchips, leaving computers unusable.
(Definition of unusable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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