Definition of efficientnext

Synonym Chooser

How does the adjective efficient contrast with its synonyms?

Some common synonyms of efficient are effective, effectual, and efficacious. While all these words mean "producing or capable of producing a result," efficient suggests an acting or a potential for action or use in such a way as to avoid loss or waste of energy in effecting, producing, or functioning.

an efficient small car

In what contexts can effective take the place of efficient?

While in some cases nearly identical to efficient, effective stresses the actual production of or the power to produce an effect.

an effective rebuttal

When would effectual be a good substitute for efficient?

The words effectual and efficient are synonyms, but do differ in nuance. Specifically, effectual suggests the accomplishment of a desired result especially as viewed after the fact.

the measures to stop the pilfering proved effectual

Where would efficacious be a reasonable alternative to efficient?

The synonyms efficacious and efficient are sometimes interchangeable, but efficacious suggests possession of a special quality or virtue that gives effective power.

a detergent that is efficacious in removing grease

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of efficient Choose faster filing methods, stay organized, prioritize the steps that matter most, and stay efficient during the waiting periods. Daniel Fusch, USA Today, 30 Mar. 2026 Sunday’s victory was the most efficient outing yet for Tatum, who went 12-for-23 from the field and 5-for-10 from 3-point range with no turnovers after struggling as a shooter over his first 10 appearances. Zack Cox, Boston Herald, 30 Mar. 2026 The device is designed for efficient, comfortable use with no pain or downtime, all in a compact, handheld design. ABC News, 30 Mar. 2026 Arizona owns the country’s fourth-most-efficient offense and second-most-efficient defense, according to the analytics website KenPom. Peter Sblendorio, New York Daily News, 30 Mar. 2026 See All Example Sentences for efficient
Recent Examples of Synonyms for efficient
Adjective
  • Gabapentin has proved effective at helping some mastectomy patients with stubborn pain, while others have responded to electrodes implanted in their spinal column, according to the Baylor study, published in 2024.
    Brett Kelman, USA Today, 4 Apr. 2026
  • While these methods remain effective, excessive tilling can break down soil aggregates into smaller particles, reducing soil health and increasing erosion risk.
    Anthony Reardon, Kansas City Star, 4 Apr. 2026
Adjective
  • But the teams entered the second half tied at 54-54, after nine lead changes and 10 ties, thanks largely to Boston’s effective offensive rebounding (11-3 in second-chance points) and productive scoring by Garza and Pritchard (13 first-half points apiece).
    Zack Cox, Boston Herald, 31 Mar. 2026
  • The pressure is increasingly on AI developers to create systems that can turn these machines into productive workers rather than technological showcases.
    Sujita Sinha, Interesting Engineering, 31 Mar. 2026
Adjective
  • The move took away one of Orlando’s most potent attacking threats, but the Pride continued pushing to find a goal.
    Kyle Foley, The Orlando Sentinel, 4 Apr. 2026
  • Chelmsford’s potent offense will be tough to limit and the Lions will be competitive, while Andover also figures to be a dangerous threat.
    Tom Mulherin, Boston Herald, 4 Apr. 2026

Cite this Entry

“Efficient.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficient. Accessed 5 Apr. 2026.

More from Merriam-Webster on efficient

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster