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English definition of “sustainable”

sustainable

adjective uk   /səˈsteɪ.nə.bl̩/ us  
C1 able to continue over a period of time: That sort of extreme diet is not sustainable over a long period.Lasting for a long time C1 causing little or no damage to the environment and therefore able to continue for a long time: A large international meeting was held with the aim of promoting sustainable development in all countries.Environmental issuesRubbish and wasteProtection and protectorsZoos and wildlife reserves
sustainability
noun [U] uk   /-nəˈbɪl.ɪ.ti/ us    /-nəˈbɪl.ə.t̬i/
Lasting for a long time
(Definition of sustainable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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