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Noun: effectiveness  u'fektivnus
  1. Power to be effective; the quality of being able to bring about an effect
    - effectivity, effectualness, effectuality
     
  2. Capacity to produce strong physiological or chemical effects
    - potency, strength

Derived forms: effectivenesses

See also: effective, impotent, ineffective, ineffectual, potent, stiff, strong, uneffective

Type of: power, powerfulness

Antonym: ineffectiveness

Encyclopedia: Effectiveness