non-renewable
US /ˌnɑːn.rɪˈnuː.ə.bəl/
UK /ˌnɑːn.rɪˈnuː.ə.bəl/
1.
a natural resource that cannot be readily replaced by natural means on a level equal to its consumption
:
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Fossil fuels are a prime example of a non-renewable resource.
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We need to reduce our reliance on non-renewable energy sources.