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wasteful

adjective
 
 
/ˈweɪst.fəl/ disapproving

Definition

using something in a careless way and causing some of it to be wasted: It's wasteful the way you throw so much food away!Wasting wastefully
 
 
/-i/ adverb disapproving
(Definition of wasteful adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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