Choose the perfect synonym or antonym for the word Working well without wasting time, energy, or resources
Efficient
/ɪˈfɪʃənt/Synonyms:
Antonyms:
Examples:
Trains are more efficient than cars.She finds studying in the morning more efficient.
Etymology:
From Latin efficiens, meaning producing, effective, from efficere, meaning work out, accomplish. First recorded use in English was in the early 18th century.
Usage Statistics:
25 mentions per 1 million words 
Hint: Frequency according to COCA
Often
Hint: Frequency according to COCA
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