effectiveness

(noun)

noun

1. power to be effective; the quality of being able to bring about an effect

Similar word(s): effectivity, effectuality, effectualness

Definition categories: attribute, power, powerfulness

2. capacity to produce strong physiological or chemical effects

Similar word(s): potency, strength

Definition categories: attribute, power, powerfulness

Sentences with effectiveness as a noun:

- The effectiveness of the drug was well established.

- He questioned the effectiveness of the treatment.