su·​per·​ef·​fi·​cient ˌsü-pər-i-ˈfi-shənt How to pronounce superefficient (audio)
: extremely efficient : producing desired effects with very little or no waste
a superefficient housekeeper
It developed a superefficient manufacturing method … that relentlessly roots out waste and builds in quality.Keith Naughton et al.
superefficiency noun
modern appliances designed for superefficiency

Examples of superefficient in a Sentence

Recent Examples on the Web The alkyne-azide bond was superefficient and left the original target, the acyl halide, largely untouched. Bydaniel Clery,, 4 Oct. 2022 This research organization started out holding competitions for superefficient aircraft but is now helping humankind come one step closer to the ultimate sci-fi fantasy: the flying car. Discover Magazine, 29 June 2010

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'superefficient.' 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

1857, in the meaning defined above

Time Traveler
The first known use of superefficient was in 1857

Dictionary Entries Near superefficient

Cite this Entry

“Superefficient.” Dictionary, Merriam-Webster, Accessed 28 Feb. 2024.

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