efficiency
noun
the ratio of the output to the input of any system
skillfulness in avoiding wasted time and effort
“she did the work with great efficiency”
Oppositesinefficiency
Source: WordNet 3.1, Princeton University
Efficiency meaning
What does “efficiency” mean? Definitions, examples, synonyms and opposites.
“efficiency” is a noun with 2 meanings. Its most common meaning is: the ratio of the output to the input of any system.