inefficient

adjective

in·​ef·​fi·​cient ˌi-nə-ˈfi-shənt How to pronounce inefficient (audio)
: not efficient: such as
a
: wasteful of time or energy
inefficient operating procedures
b
: incapable, incompetent
an inefficient worker
c
: not producing the effect intended or desired
inefficient noun
inefficiently adverb

Examples of inefficient in a Sentence

The delivery system was very inefficient. an inefficient use of fuel
Recent Examples on the Web
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.
As teams scale, decision-making can become inefficient and accountability can blur. Patrick Donegan, Forbes, 5 Mar. 2025 Two critical areas where Kansas struggles are 1) free-throw rate (its 23.9 FTR ranks No. 357 in the nation) and 2) low-volume and inefficient 3-point shooting. Tyler Everett, Newsweek, 3 Mar. 2025 But the Bluejays also had an inefficient start going 3-for-12 in the first quarter, and the Huskies answered the early run with a 6-0 streak of their own. Emily Adams, Hartford Courant, 28 Feb. 2025 Similarly, 300-unit market-rate buildings have lower costs per unit than 40-unit buildings that absorb the cost of federal funds and the inefficient system that is LIHTC. Marisa Novara, Chicago Tribune, 27 Feb. 2025 See All Example Sentences for inefficient

Word History

First Known Use

1750, in the meaning defined above

Time Traveler
The first known use of inefficient was in 1750

Browse Nearby Words

Cite this Entry

“Inefficient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inefficient. Accessed 9 Mar. 2025.

Kids Definition

inefficient

adjective
in·​ef·​fi·​cient ˌin-ə-ˈfish-ənt How to pronounce inefficient (audio)
1
: not producing the effect expected or desired
inefficient regulations
2
: wasteful of time or energy
inefficient procedures
especially : accomplishing little relative to the time spent or effort expended
an inefficient worker
inefficiently adverb

More from Merriam-Webster on inefficient

Last Updated: - Updated example sentences
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