sus·tain·able 
/səˈsteɪnəbəl/ adjective
/səˈsteɪnəbəl/ adjective [more sustainable; most sustainable] 1 : able to be used without being completely used up or destroyed
▪ sustainable energy resources ▪ a sustainable water supply 2 : involving methods that do not completely use up or destroy natural resources
▪ sustainable agriculture/farming/techniques 3 : able to last or continue for a long time
▪ sustainable development/growth
▪ sustainable energy resources ▪ a sustainable water supply
▪ sustainable agriculture/farming/techniques
▪ sustainable development/growth
— sus·tain·abil·i·ty /səˌsteɪnəˈbɪləti/ noun [noncount]
/səˌsteɪnəˈbɪləti/ noun [noncount]— sus·tain·ably /səˈsteɪnəbli/ adverb
/səˈsteɪnəbli/ adverb
