効率的な定義と意味 | Dictionary.com

EFFICIENT Definition & Meaning | Dictionary.com Synonyms efficient American [ih- fish - uh nt] / 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. Synonyms: effectual 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. efficient British / ɪˈfɪʃənt / adjective functioning or producing effectively and with the least waste of effort; competent philosophy producing a direct effect; causative "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 Usage What are other ways to say efficient ? A person or a thing that is efficient performs or functions in the best possible manner with the least waste of time and effort. But efficient isn’t quite the same as effectual , efficacious , or effective ! Find out why on Thesaurus.com. Other Word Forms efficiently adverb nonefficient adjective quasi-efficient adjective superefficient adjective unefficient adjective Etymology 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, do 1 ” + -ent- -ent Explanation The adjective efficient describes function and use with the least amount of waste and most economy. When you want to define the adjective efficient , it's a good idea to say as much as you can in as few words as possible because to be efficient is to be economical and avoid waste in actions or uses. The word comes from the Latin efficientem which means "work out" or "accomplish." Synonyms of efficient are effective , productive , and competent . Keep Reading on Vocabulary.com Vocabulary lists containing efficient List 1 Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide! Labor Day Lexicon: Words That Put You To Work Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use! Essential English Vocabulary, List 1 Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time! Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. For the buyers, it’s way cheaper, more efficient, and less burdensome than the official Meta/TikTok/YouTube ad-and-influencer apparatus. From Slate • May 6, 2026 “By leveraging our existing platforms and powertrain to bring new motorcycles to market, we are operating with a more capital efficient model.” From The Wall Street Journal • May 6, 2026 The ultimate goal is a compiler that takes code written for conventional computers and automatically transforms it into an efficient quantum algorithm. From Barron's • May 5, 2026 This approach involves replacing several power-consuming components at once with more efficient alternatives to maintain enough warmth and functionality for continued science operations. From Science Daily • May 4, 2026 Cluny aimed a kick at him as the efficient weasel took his place. From "Redwall" by Brian Jacques Related Words able active adept adequate capable competent decisive dynamic economical effective energetic potent powerful productive profitable skilled skillful tough useful valuable Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.