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 The initial failures of the pier project have reinforced criticisms among some diplomats, who have said the initiative was too expensive and inefficient. Adam Rasgon, New York Times, 23 May 2024 Lack of tree canopy, lack of air conditioning at home or work and inefficient infrastructure can also play a part, said V. Kelly Turner, an associate director of urban planning at UCLA who did not work on the report. Hayley Smith, Los Angeles Times, 22 May 2024 See all Example Sentences for inefficient 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'inefficient.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1750, in the meaning defined above

Time Traveler
The first known use of inefficient was in 1750

Dictionary Entries Near inefficient

Cite this Entry

“Inefficient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inefficient. Accessed 29 May. 2024.

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
Love words? Need even more definitions?

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