- The definition of efficient is being productive with minimal effort.
An example of efficient is a car that gets 60 miles to a gallon of gas.
- directly producing an effect or result; causative; effective: the efficient cause
- producing a desired effect, product, etc. with a minimum of effort, expense, or waste; working well
Origin of efficientMiddle English and amp; Old French ; from Classical Latin efficiens, present participle of efficere: see effect
- Acting or producing effectively with a minimum of waste, expense, or unnecessary effort: an efficient builder; an efficient factory.
- Acting directly to produce an effect: the efficient cause of the revolution.
- Causing less waste or requiring less effort than comparable devices or methods. Used in combination: energy-efficient wind turbines; cost-efficient health care.
Origin of efficientMiddle English, from Old French, from Latin efficiēns, efficient-, present participle of efficere, to effect; see effect.
(comparative more efficient, superlative most efficient)
- Making good, thorough, or careful use of resources; not consuming extra. Especially, making good use of time or energy.
- An efficient process would automate all the routine work.
- Our cleaners are almost too efficient: they throw away anything left out on a desk.
- Using a particular proportion of available energy.
- The motor is only 20% efficient at that temperature.
- Causing effects; producing results.
terms etymologically related to efficient