inefficient

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adjective

1. Lacking the qualities, as efficiency or skill, required to produce desired results: inapt, incapable, incompetent, inept, inexpert, unskilled, unskillful, unworkmanlike. See ability/inability.
2. Not having the desired effect: ineffective, ineffectual, inefficacious, useless. See affect/ineffectiveness.

adj

Definition: not working well; wasteful
Antonyms: able, capable, competent, efficient, expert, useful

IN BRIEF: Wasteful of time or energy.

War is an instrument entirely inefficient toward redressing wrong; and multiplies, instead of indemnifying losses. — Thomas Jefferson (1743-1826), American statesman.

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For a list of words related to inefficient, see:

• Ordinary, Dull, Plain, or Banal

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  See crossword solutions for the clue Inefficient.

Dansk (Danish)
adj. - ineffektiv, virkningsløs, uduelig, udygtig, inkompetent

Nederlands (Dutch)
inefficiënt

Français (French)
adj. - inefficace

Deutsch (German)
adj. - ineffizient, unfähig

Ελληνική (Greek)
adj. - αναποτελεσματικός, αλυσιτελής, ατελέσφορος, ανίκανος, ανεπαρκής, μη αποδοτικός

Italiano (Italian)
inefficiente

Português (Portuguese)
adj. - ineficiente

Русский (Russian)
неспособный, неэффективный

Español (Spanish)
adj. - ineficaz, inútil, incompetente, ineficiente

Svenska (Swedish)
adj. - ineffektiv (äv. om pers.), medelmåttig, inkompetent

中文（简体）(Chinese (Simplified))
无效率的, 无能的

中文（繁體）(Chinese (Traditional))
adj. - 無效率的, 無能的

한국어 (Korean)
adj. - 비능률적인, 무능한, 쓸모없는

日本語 (Japanese)
adj. - 無効果の, 役に立たない
n. - 無能な人

العربيه (Arabic)
‏(صفه) غير فعال أو كفؤ‏

עברית (Hebrew)
adj. - ‮בזבזני, לא יעיל‬

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