Simple Definition of efficient

from our Learner's Dictionary

efficient

adjective

ɪˈfɪʃənt How to pronounce efficient (audio)
: capable of producing desired results without wasting materials, time, or energy
an efficient worker
efficient machinery

Cite this Entry

“Efficient.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/efficient. Accessed 14 Apr. 2026.

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