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inefficient

 
/ˌɪn·ɪˈfɪʃ·ənt/ adj

Definition

wasting time, money, energy, or other valuable possessions or qualities: Many of their industries are hopelessly inefficient. inefficiency
 
/ˌɪn·ɪˈfɪʃ·ən·si/ n [U]
She promised to end government inefficiency.
inefficiently
 
/ˌɪn·əˈfɪʃ·ənt·li/ adv
He uses his time inefficiently.
(Definition of inefficient adj from the Cambridge Academic Content Dictionary © Cambridge University Press)

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