B1 — Intermediateadjective
efficace
effective, efficient
Synonyms (≈ similar meaning)
validoproduttivofunzionaleutileincisivo
Antonyms (≠ opposite meaning)
inefficaceinutilevanofallimentaresterile
Usage note
'Efficiente' (efficient) focuses on resource use, 'efficace' on results achieved. 'Incisivo' suggests cutting impact.
Example
"Questo metodo di studio è molto efficace per imparare le lingue."
"This study method is very effective for learning languages."
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