from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not efficient, as:
- adj. Lacking the ability or skill to perform effectively; incompetent: an inefficient worker.
- adj. Not producing the intended result; ineffective: an inefficient campaign against illegal drugs.
- adj. Wasteful of time, energy, or materials: an inefficient design; outdated and inefficient methods.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures.
- adj. Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workers; an inefficient administrator.
from the GNU version of the Collaborative International Dictionary of English
- adj. Not efficient; not producing the effect intended or desired, or achieiving the effect by unnnecessary and excessive expenditure of resources; inefficacious.
- adj. Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing
from The Century Dictionary and Cyclopedia
- Not efficient; not producing or not capable of producing the desired effect; incapable; incompetent; inadequate: as, inefficient measures; an inefficient police.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. lacking the ability or skill to perform effectively; inadequate
- adj. not producing desired results; wasteful
in- + efficient (Wiktionary)