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

• effectivity
• effectuality
• effectualness

2. (noun) capacity to produce strong physiological or chemical effects

• potency
• strength

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

• efficaciousness
• efficacy
• incisiveness
• trenchancy

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

• power
• powerfulness

2. (noun) capacity to produce strong physiological or chemical effects

• power
• powerfulness

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

• effective
• effective
• efficient
• efficient
• effective
• effective
• effective
• effectual
• effectual
• effectual
• efficacious
• efficacious
• efficacious
• effective
• effective

2. (noun) capacity to produce strong physiological or chemical effects

• potent
• stiff
• strong

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

• ineffectiveness
• ineffectuality
• ineffectualness