#effectivity__effectivenes__effectualnes  power to be effective; the quality of being able to bring about an effect
  exclusion:  ineffectiveness
  supertype:  powerfulness__power__potency  possession of controlling influence; "the deterrent power of nuclear weapons"; "the power of his love saved her"
  subtype:  incisiveness__trenchancy  keenness and forcefulness of thought or expression or intellect
  subtype:  efficacy__efficaciousness  capacity or power to produce a desired effect

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