inefficiency
US /ˌɪn.ɪˈfɪʃ.ən.si/
UK /ˌɪn.ɪˈfɪʃ.ən.si/
1.
ความไร้ประสิทธิภาพ
a lack of organization or skill that wastes time, energy, money, etc., or methods or actions that waste time, etc. in this way:
:
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They were accused of gross inefficiency in their handling of the case.