inefficient

Not efficient, as.

Lacking the ability or skill to perform effectively; incompetent.

Not producing the intended result; ineffective.

Wasteful of time, energy, or materials.

Not efficient; not producing or not capable of producing the desired effect; incapable; incompetent; inadequate: as, inefficient measures; an inefficient police.

Not efficient; not producing the effect intended or desired, or achieiving the effect by unnnecessary and excessive expenditure of resources; inefficacious.

Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing

Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures.

Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workers; an inefficient administrator.

lacking the ability or skill to perform effectively; inadequate