effectualness

Power to accomplish

The quality of producing an intended effect or result.

Effectualness emphasizes actual accomplishment rather than mere potential: The effectualness of the treatment was evident within days.

The word is rarely used—effectiveness or efficacy typically serve the same purpose with less awkwardness.

efficacy

success

Favorable outcome attained

realization · execution · performance · capability · competence · proficiency · adequacy · potency · validity · usefulness

strength

power

Energy transfer rate

potency · intensity · energy · dynamism · authority · command · dominance · firmness · soundness · reliability

impact

influence

Power to affect others

import · meaningfulness · profoundness · momentousness · resonance · forcefulness · persuasiveness · cogency · clout · sway

productivity

fruitfulness

Capacity for abundant production

returns · constructiveness · resourcefulness · prolificness · fertility · abundance · bountifulness · profitability · value · benefit

Opposites
capacity to produce intended results

effectualnessineffectualness

Lacking practical impact

ineffectuality · ineffectiveness · futility · uselessness · fruitlessness

practical competence and capability

effectualnessincompetence

Lack of required skill

incompetency · inability · inadequacy · inadequateness · inefficiency

Family

ineffectualness

Familiarity
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Profile
Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G