Definition of efficient in English:


Syllabification: ef·fi·cient
Pronunciation: /iˈfiSHənt


  • 1(Especially of a system or machine) achieving maximum productivity with minimum wasted effort or expense: fluorescent lamps are efficient at converting electricity into light
    More example sentences
    • If we use only five to eight firms, we will be able to offer a streamlined and more efficient service.
    • In some ways it is a sleek and efficient machine; in others, it is full of flaws.
    • It certainly seemed a very efficient system and one which everyone participates in.
  • 1.1(Of a person) working in a well-organized and competent way: an efficient administrator
    More example sentences
    • I work with a team of women who are really well organised, effective and efficient teachers.
    • Learn to become more organized with day-to-day activities and a more efficient worker.
    • Chris was known widely as an astute and efficient farmer and a devoted family man.
    organized, methodical, systematic, logical, orderly, businesslike, streamlined, productive, effective, cost-effective, labor-savingcompetent, capable, able, proficient, adept, skillful, skilled, effective, productive, organized, businesslike
  • 1.2 [in combination] Preventing the wasteful use of a particular resource: an energy-efficient heating system



More example sentences
  • We all want the phone answered quickly and our inquiries handled efficiently and effectively.
  • They dominate their field and run complex operations incredibly efficiently.
  • The staff efficiently go about the business of making you feel welcome in a relaxed and friendly atmosphere.


late Middle English (in the sense 'making, causing', usually in efficient cause): from Latin efficient- 'accomplishing', from the verb efficere (see effect). The current sense dates from the late 18th century.

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used to address an English nobleman