efficacies

Abilities to work

Efficacies is the plural of efficacy, the power to produce a desired effect.

The word appears most often in scientific and medical contexts, where researchers compare the efficacies of different treatments or interventions: Studies measured the relative efficacies of the two vaccines.

Unlike effectiveness, which concerns real-world results, efficacy refers to performance under ideal conditions.

effectiveness

productivity

Output relative to input

proficiency · competence · functionality · reliability · utility · usefulness · practicality · adequacy · optimization · quality

benefit

benefit

Advantage or gain

  • advantageFavorable position or circumstance
  • gainPositive return received
  • valueImportance or price

merit · utility · helpfulness · usefulness · boon · blessing · asset · upside · contribution · enhancement

potency

potency

Degree of strength

intensity · vigor · robustness · concentration · dynamism · might · energy · punch · clout · teeth

impact

impact

Forceful contact or consequence

consequence · change · transformation · repercussion · ramification · improvement · advancement · progression · development · modification

Opposites
effectiveness

efficaciesinefficacies

Lacks of effectiveness

failures · futilities · impotences · inadequacies · inabilities

productivity/utility

efficaciesinefficiencies

Failures to optimize

dysfunctions · malfunctions · breakdowns

effectiveness/power to produce results

efficaciesinefficacies

Lacks of effectiveness

ineffectiveness · uselessness · futility · impotence · failures

Family

efficacious, efficaciousness, inefficacious

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