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 Cares could easily slip away once walking through welcoming and efficient security. Los Angeles Times, 10 July 2025 It's powered by the fast and efficient S10 chip and boasts tons of health, fitness, and lifestyle features, including GPS workout recording, ECG, sleep and cycle tracking, music, podcasts, and third-party app support. Cierra Cowan, PC Magazine, 9 July 2025 Without an accountant on staff, one of the most efficient ways to handle these responsibilities is by using accounting software. Mia Taylor, CNBC, 27 June 2025 Today's dishwashers are much more efficient, using just 3 to 4 gallons of water per load. Brandee Gruener, Southern Living, 26 June 2025 See All Example Sentences for efficient
Recent Examples of Synonyms for efficient
Adjective
  • According to the team, this research indicates that ghost crabs are effective predators of the early life phase of sea turtles with a taste for meat.
    Laura Baisas, Popular Science, 10 July 2025
  • But incentives must also support long-term habit formation to be truly effective.
    Rowan Briggs, Mercury News, 10 July 2025
Adjective
  • Today, an open-minded, AI-native young person who is comfortable with these tools can accomplish so much more, so much quicker, and help older people be more productive.
    Paul Klein, Forbes.com, 8 July 2025
  • Snow was still productive for the Giants in the 2000s, with a .276/.372/.420 slash line, a .337 postseason average and the last of his six Gold Gloves.
    Tyler Kepner, New York Times, 8 July 2025
Adjective
  • That’s a potent incentive to take your vacation and come back to work energized.
    Harry Kraemer, Forbes.com, 8 July 2025
  • Much like its approach to skincare, Korean hair care is rooted in a philosophy of prevention, nourishment, and layering lightweight yet potent formulas.
    Conçetta Ciarlo, Vogue, 8 July 2025

Cite this Entry

“Efficient.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/efficient. Accessed 19 Jul. 2025.

More from Merriam-Webster on efficient

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