efficient

[ ih-fish-uhnt ]
/ ɪˈfɪʃ ənt /

adjective

performing or functioning in the best possible manner with the least waste of time and effort; having and using requisite knowledge, skill, and industry; competent; capable: a reliable, efficient assistant.
satisfactory and economical to use: Our new air conditioner is more efficient than our old one.
producing an effect, as a cause; causative.
utilizing a particular commodity or product with the least waste of resources or effort (usually used in combination): a fuel-efficient engine.

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Origin of efficient

First recorded in 1350–1400; Middle English, from Middle French, from Latin efficient- (stem of efficiēns ), equivalent to ef- ef- + fic-, combining form of facere “to make, do1 ” + -ent- -ent

synonym study for efficient

1. See effective.

OTHER WORDS FROM efficient

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for efficient

British Dictionary definitions for efficient

efficient
/ (ɪˈfɪʃənt) /

adjective

functioning or producing effectively and with the least waste of effort; competent
philosophy producing a direct effect; causative

Derived forms of efficient

efficiently, adverb

Word Origin for efficient

C14: from Latin efficiēns effecting
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012