Here you will find one or more explanations in English for the word Inefficient.
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Inefficient
Inefficient In`ef*fi"cient, a.
1. Not efficient; not producing the effect intended or
desired; inefficacious; as, inefficient means or measures.
2. Incapable of, or indisposed to, effective action;
habitually slack or remiss; effecting little or nothing;
as, inefficient workmen; an inefficient administrator.
Meaning of Inefficient from wikipedia