D defs.my
Entry 2 senses Webster, 1913

Inefficient

/ĭnˌ-ĭf-ĭsh'-ənt/ · In·ef·fi·cient · IPA /ˌɪn.ɪˈfɪʃ.ənt/
01 a. Not efficient; not producing the effect intended or desired, or achieiving the effect by unnnecessary and excessive expenditure of resource…
  1. 1.
    Not efficient; not producing the effect intended or desired, or achieiving the effect by unnnecessary and excessive expenditure of resources; inefficacious; as, inefficient means or measures; inefficient methods are too expensive.
  2. 2.
    Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workmen; an inefficient administrator.