superefficient

adjective
su·​per·​ef·​fi·​cient | \ ˌsü-pər-i-ˈfi-shənt How to pronounce superefficient (audio) \

Definition of superefficient

: 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.

Other Words from superefficient

superefficiency \ ˌsü-​pər-​i-​ˈfi-​shən-​sē How to pronounce superefficiency (audio) \ noun
modern appliances designed for superefficiency

First Known Use of superefficient

1857, in the meaning defined above

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The first known use of superefficient was in 1857

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