efficient
Speech parts
1. efficient - Noun
2. efficient - Adjective
3. efficient - Adjective Satellite
Meaning
Causing effects; producing results; that makes the effect to be what it is; actively operative; not inactive, slack, or incapable; characterized by energetic and useful activity; as, an efficient officer, power.
An efficient cause; a prime mover.
Source: Webster's dictionarySynonyms
Antonyms
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Examples
people who will do nothing unless they get something out of it for themselves are often highly effective persons...
effective personnel
an efficient secretary
the efficient cause of the revolution
an efficient production manager
efficient engines save gas