Words and phrases that have a meaning related to efficient:  (185 results)
Antonyms:
inefficient
Often used in the same context:
economical, effective, environmentally sound, user friendly, streamlined, reliable, inefficient, flexible, affordable, smarter, responsive, inexpensive, greener, productive, dependable, scalable, agile, transparent, expensive, innovative, simpler, intuitive, intelligent, adaptable, cheaper, convenient, cleaner, speedier, versatile, expeditious, leaner, crashworthy, simplified, sustainable, profitable, durable, sophisticated, quicker, equitable, smoother, nimble, decentralized, costly, safer, easier, decarbonized, decarbonise, faster, sleeker, seamless, stainable, nonpolluting, optimized, optimal, centralized, robust, ungreen, accurate, alternative, manoeuvrable, advantageous, emissive, integrated, healthier, saving, duplicatable, attractive, conserving, viable, uncorrupt, thriftier, modular, timelier, obsoleting, competitive, feasible, hireable, accessible, repeatable, dynamic, bioclimatic, compact, usable, tidier, effortless, advanced, frugal, judicious, fairer, maneuverable, resourceful, straightforward, useable, neater, comfortable, consistent, continuous improvement, cutting edge, humane, proactive, balanced, predictable, good, basic, concern, incentive, independent, inducement, natural, object, personal, reason, viz, con, convincing, cooperative, dispensers, i.e., mover, protective, being, exemplar, costeffective, ineffective, optimised, automated, uneconomical, based, efficacious, cryptographic, sequential, decentralised, hased, improved, semiautomatic
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— Nouns for efficient: use, way, system, cause, method, means, operation, manner, management, service, methods, more...

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