Choose the perfect synonym or antonym for the word Effectiveness means the ability to achieve intended results successfully and efficiently.
Effectiveness
/ɪˈfɛktɪvnəs/Synonyms:
Antonyms:
Examples:
The team's effectiveness improved after the new training.
She questioned the effectiveness of the current policy.
Studies show the effectiveness of regular exercise in stress reduction.
Etymology:
Originating from the Latin term effectivus, meaning creative or productive, the word passed into Late Latin as effectivitas and then into Middle French as effectivité before English adoption in the mid-19th century.
Usage Statistics:
18 mentions per 1 million words 
Hint: Frequency according to COCA
Often
Hint: Frequency according to COCA
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