Choose the perfect synonym or antonym for the word Something that produces a desired or intended result
Effective
/ɪˈfektɪv/Synonyms:
Antonyms:
Examples:
This medicine is very effective against colds.The new teacher's methods are highly effective.
Etymology:
from Latin effectivus ‘creative, effective’, from effectus ‘accomplishment’, from efficere ‘work out, accomplish’
Usage Statistics:
80 mentions per 1 million words 
Hint: Frequency according to COCA
Often
Hint: Frequency according to COCA
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