Synonyms for efficiency
ɪˈfɪʃ ən sief·fi·cien·cy

WiktionaryRate these synonyms:0.0 / 0 votes

1. efficiencynoun

   Synonyms:
   effectiveness

   Antonyms:
   wastefulness, inefficiency

2. efficiencynoun

   The extent to which time is well used for the intended task.

   The efficiency of the planning department is deplorable.

   Synonyms:
   effectiveness

   Antonyms:
   wastefulness, inefficiency

3. efficiencynoun

   The quality of producing an effect or effects.

   Synonyms:
   effectiveness

   Antonyms:
   inefficiency, wastefulness

4. efficiencynoun

   The extent to which a resource, such as electricity, is used for the intended purpose; the ratio of useful work to energy expended.

   The efficiency of this loudspeaker is 40%.

   Synonyms:
   effectiveness

   Antonyms:
   wastefulness, inefficiency

5. efficiencynoun

   A one-room apartment.

   Synonyms:
   effectiveness

   Antonyms:
   inefficiency, wastefulness

English Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. efficiency

   Power is the most general term of this group, including every quality, property, or faculty by which any change, effect, or result is, or may be, produced; as, the power of the legislature to enact laws, or of the executive to enforce them; the power of an acid to corrode a metal; the power of a polished surface to reflect light. Ability is nearly coextensive with power, but does not reach the positiveness and vigor that may be included in the meaning of power, ability often implying latent, as distinguished from active power; we speak of an exertion of power, but not of an exertion of ability. Power and ability include capacity, which is power to receive; but ability is often distinguished from capacity, as power that may be manifested in doing, as capacity is in receiving; one may have great capacity for acquiring knowledge, and yet not possess ability to teach. Efficiency is active power to effect a definite result, the power that actually does, as distinguished from that which may do. Competency is equal to the occasion, readiness prompt for the occasion. Faculty is an inherent quality of mind or body; talent, some special mental ability. Dexterity and skill are readiness and facility in action, having a special end; talent is innate, dexterity and skill are largely acquired. Our abilities include our natural capacity, faculties, and talents, with all the dexterity, skill, and readiness that can be acquired. Efficacy is the power to produce an intended effect as shown in the production of it; as, the efficacy of a drug. Efficiency is effectual agency, competent power; efficiency is applied in mechanics as denoting the ratio of the effect produced to the power expended in producing it; but this word is chiefly used of intelligent agents as denoting the quality that brings all one's power to bear promptly and to the best purpose on the thing to be done. Compare ADDRESS; DEXTERITY; SKILFUL.

   Synonyms:
   ability, aptitude, capability, capacity, cleverness, cogency, competency, dexterity, efficacy, energy, expertness, faculty, force, might, power, qualification, readiness, skill, strength, susceptibility, talent

   Antonyms:
   awkwardness, dulness, feebleness, helplessness, imbecility, impotence, inability, inaptitude, incapacity, incompetence, inefficiency, maladroitness, stupidity, unskilfulness, weakness

Princeton's WordNetRate these antonyms:4.3 / 3 votes

1. efficiencynoun

   the ratio of the output to the input of any system

   Antonyms:
   inefficiency

2. efficiencynoun

   skillfulness in avoiding wasted time and effort

   "she did the work with great efficiency"

   Antonyms:
   inefficiency

Matched Categories

1. • Ratio
   • Skillfulness

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. efficiencynoun

   Synonyms:
   EFFICACY

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "efficiency":

   effectiveness, efficacy, efficient, efficiencies, performance, effective, efficiently, productivity, profitability, effectively, cost-effectiveness, yield, 'efficacité

Suggested Resources

1. Efficiency

   Efficacy vs. Efficiency -- In this Grammar.com article you will learn the differences between the words Efficacy and Efficiency.

How to pronounce efficiency?

How to say efficiency in sign language?

Usage in printed sourcesFrom: 

1. 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Words popularity by usage frequency

How to use efficiency in a sentence?

1. Stefan Borgas:

   Efficiency initiatives, which we expect to continue beyond 2016, reduced our production costs and led to record potash production at ICL Dead Sea and drove incremental profitability despite a difficult operating environment, in 2016, we will continue to create greater balance between our commodity and specialty businesses in order to optimally position ICL for further growth and profitability.

2. John Fitzgerald Kennedy:

   Washington D.C. is a city of Southern efficiency and Northern charm.

3. Terry Tamminen:

   Our conversation focused on how [sic] create millions of secure, American jobs in the construction and operation of commercial and residential clean, renewable energy generation, these programs attainable — and include energy efficiency upgrades that pay for themselves with savings, waste reduction projects that can turn every city into a source of new materials and fuels, and transportation projects that will support global trade while reducing traffic and air pollution and make America a leader in sustainable fuel and vehicle technologies.

4. Scott Kupor:

   It's a great example to me of the more meta level of what Elon and the DOGE team was doing, which is rethink processes from ground zero, be creative in terms of what the solutions are and recognize that, look, you have to actually make significant change if you want to ultimately drive efficiency in the government.

5. Justice William O. Douglas:

   Big Brother in the form of an increasingly powerful government and in an increasingly powerful private sector will pile the records high with reasons why privacy should give way to national security, to law and order, to efficiency of operation, to scientific advancement and the like.