effectiveness
- 1The quality of successfully producing the results that were intended.
The committee questioned the program's effectiveness after reviewing the results.
Researchers compared the effectiveness of two very different teaching methods.
Similarefficacy, success, usefulness, efficiency
Oppositeineffectiveness, uselessness, futility
- 2The measure of how fully something achieves the results it aims for.
Analysts assessed the campaign's effectiveness using sales data from each region.
The study ranked each pesticide by its effectiveness against common pests.
Similarefficacy, success, performance
- 3The capacity something holds for producing results, considered as a potential rather than a measured outcome.
Years of scandal have damaged the agency's credibility and effectiveness.
Designers built the filter for maximum effectiveness under heavy loads.
Similarefficacy, potency, power, capability
Oppositeineffectiveness
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Origin
Formed from the adjective "effective" combined with the noun-forming suffix "-ness."