Meaning | Capacity or power to produce a desired effect. |
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Synonym | efficacy |
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Attributes | efficacious | marked by qualities giving the power to produce an intended effect |
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inefficacious | lacking the power to produce a desired effect |
Broader | effectiveness, effectivity, effectualness, effectuality | Power to be effective |
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Opposite | inefficacy, inefficaciousness | A lack of efficacy |
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Spanish | diligencia, efectividad, eficacia |
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Catalan | eficàcia, eficiència |
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Adjectives | efficacious | marked by qualities giving the power to produce an intended effect |
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efficacious | producing or capable of producing an intended result or having a striking effect |