efficaciousness
Ability to work
The quality of being effective in producing a desired result.
Efficaciousness is the noun form of efficacious, carrying the same meaning as efficacy but with a more cumbersome construction.
Writers generally prefer efficacy: the efficacy of the vaccine sounds more natural than the efficaciousness of the vaccine.
What follows from effort
- outcomeFinal result of events
- successFavorable outcome attained
- impactForceful contact or consequence
- achievementAccomplished goal or deed
performance · utility · usefulness · improvement · advancement · progress · optimization · reliability
Having great strength
- potentHaving great effect
- influentialHaving considerable effect
- impactfulHaving significant effect
- forcefulExerting strong pressure
dynamic · vigorous · intense · robust · compelling · persuasive · convincing · decisive
Favorable position or circumstance
- gainPositive return received
- valueImportance or price
- profitGain exceeding expenditure
- enhancementIncrease in quality
merit · reward · boon · asset · helpfulness · return · dividend · bonus
Adequate ability to function
- proficiencySkilled performance level
- aptitudeInnate capability
- capacityMaximum amount containable
- expertiseSkill from extensive practice
skillfulness · prowess · acumen · readiness · facility · ability · adequacy · sufficiency
What something generates
- yieldProduce or relinquish
- throughputProcessing rate over time
- fruitfulnessCapacity for abundant production
- prolificacyQuality of abundant production
industriousness · production · optimization · performance · workrate · returns · deliverables · accomplishment
results
What follows from effort
achievement · performance · utility · usefulness · improvement · advancement · progress · optimization · reliability · precision
powerful
Having great strength
- potentHaving great effect
- influentialHaving considerable effect
- impactfulHaving significant effect
forceful · dynamic · vigorous · intense · robust · compelling · persuasive · convincing · decisive · concentrated
advantage
Favorable position or circumstance
enhancement · merit · reward · boon · asset · helpfulness · return · dividend · bonus · worth
competence
Adequate ability to function
- proficiencySkilled performance level
- aptitudeInnate capability
- capacityMaximum amount containable
expertise · skillfulness · prowess · acumen · readiness · facility · ability · adequacy · sufficiency · fitness
output
What something generates
- yieldProduce or relinquish
- throughputProcessing rate over time
- fruitfulnessCapacity for abundant production
prolificacy · industriousness · production · optimization · performance · workrate · returns · deliverables · accomplishment · attainment
efficaciousnessineffectiveness
Failure to achieve results
inefficacy · ineffectualness · ineffectuality · uselessness · futility
efficaciousnessimpotence
Lack of strength or power
powerlessness · weakness · feebleness · inertness · toothlessness
efficaciousnessfutility
Lack of purpose
vanity · pointlessness · fruitlessness · empty gesture · wishful thinking
effect, effective, efficiency, efficient, effectiveness, efficacy, effectual, efficacious, effectuate