intermediate Level
Efficient
(Especially of a system or machine) achieving maximum productivity with minimum wasted effort or expense.
✓ Synonyms
Organizedmethodicalsystematiceffective
✗ Antonyms
Inefficientwasteful
About "Efficient"
Efficient is a vocabulary word commonly tested on the SAT. Understanding this word and its synonyms (Organized, methodical) can help you answer Reading and Writing questions more accurately. The opposite meaning (antonyms) includes words like Inefficient and wasteful..
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