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Definitions

efficient

[ih-fish-uhnt] / ɪˈfɪʃ ənt /
ADJECTIVE
capable, effective
Synonyms
STRONGEST
able active adept adequate capable competent decisive dynamic economical effective energetic potent powerful productive profitable skilled skillful tough useful valuable
WEAK
accomplished adapted apt businesslike clever conducive deft economic effectual efficacious equal to experienced expert familiar with fitted good at good for handy masterly organized practiced proficient qualified ready saving shrewd systematic talented virtuous well-organized
Antonyms
STRONGEST
delicate fragile idle impotent inactive inadequate incapable incompetent ineffective inept lazy sluggish unable unskilled unskillful useless weak worthless
WEAK
helpless inefficient powerless

Usage

What are other ways to say efficient? The adjective efficient, when applied to a person or a thing, implies the skillful use of energy or industry to accomplish desired results with little waste of effort: efficient methods; an efficient manager. Effective is applied to a person or a thing that has the power to, or which actually does, produce an effect: an effective boss, remedy, speech. Effectual is used especially of that which produces the effect desired or intended, or a decisive result: An effectual bombardment silenced the enemy. Efficacious suggests the capability of achieving a certain end: an efficacious plan, medicine. 

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.

"It will help us make food production more efficient, it will help us produce energy, to transport energy, to store energy..solve climate change and human hunger..."

From BBC

According to LendingTree, there are three ways to do this; the most efficient car refinancers get a lower rate and shorten their loan term.

From MarketWatch

According to LendingTree, there are three ways to do this; the most efficient car refinancers get a lower rate and shorten their loan term.

From MarketWatch

Berenberg says it is increasingly confident that Vodafone can execute well in its core markets such as Germany and the U.K., and points to the company’s efficient capital management.

From The Wall Street Journal

The chief worry for White is that until 2020 most supply shocks were positive and disinflationary, as globalization and efficient supply chains kept prices in abeyance.

From MarketWatch

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.