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English definition of “inefficient”

inefficient

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