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Meaning of “unsustainable” - Learner’s Dictionary

unsustainable

adjective     /ˌʌnsəˈsteɪnəbəl/
Something that is unsustainable cannot continue at the same rateUnachievable
causing damage to the environment by using more of something than can be replaced naturally: unsustainable fishing methodsEnvironmental issuesRubbish and wasteProtection and protectors
(Definition of unsustainable from the Cambridge Learner’s Dictionary © Cambridge University Press)
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