effectiveness

How well something works

Effectiveness is the degree to which something achieves its intended purpose.

An effective treatment cures the disease; its effectiveness is how well and reliably it does so.

The word emphasizes results over process—a plan may be elegant or efficient, but its effectiveness is measured by whether it works: The effectiveness of the new policy remains to be seen.

efficiency

productivity

Output relative to input

workflow · economical · resourcefulness · methodical · expeditious · throughput · output · turnaround · lean · systematic

impact

influence

Power to affect others

result · change · transformation · repercussion · ramification · magnitude · weight · importance · value · benefit

achievement

success

Favorable outcome attained

attainment · fulfillment · realization · completion · execution · fruition · goal · objective · yield · advancement

potency

potent

Having great effect

convincing · persuasive · compelling · strong · authoritative · commanding · dynamic · vigorous · robust · intense

capability

proficiency

Skilled performance level

skill · aptitude · mastery · know-how · qualification · readiness · adeptness · prowess · facility · acumen

measurement

benchmark

Standard for comparison

metrics · standards · indicators · appraisal · analysis · quantification · rating · scoring · review · validation

Categories
Opposites
achieving intended results

effectivenessineffectiveness

Failure to achieve results

ineffectuality · ineffectualness · failure · futility · unproductivity

power and potency

effectivenesspowerlessness

Inability to affect outcomes

impotence · weakness · feebleness · debility · enervation

practical utility

effectivenessuselessness

Lack of practical value

worthlessness · pointlessness · inadequacy · incompetence · futility

Family

ineffectiveness

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G