🔄 Synonyms of "Efficacy"
1 synonyms found via WordNet and Google Books.
| Word | Definition |
|---|---|
| efficaciousnessnoun | Quality of being efficacious. |
↔️ Antonyms of "Efficacy"
Words with the opposite meaning.
| Word | Definition |
|---|---|
| inefficacynoun | The condition of being ineffective |
| inefficaciousnessnoun | Lack of efficacy. |
💡 Words with a Similar Meaning to "Efficacy"
Found via reverse dictionary — words that share a conceptual meaning.
| Word | Definition |
|---|---|
| efficaciousnessnoun | Quality of being efficacious. |
| efficacious | (formal) Effective; possessing efficacy. |
| effectivenoun | (military) a soldier fit for duty |
| effectivenessnoun | The property of being effective, of achieving results. |
| usefulnessnoun | The quality or degree of being useful. |
| utilitynoun | The state or condition of being useful; usefulness. |
| efficiencynoun | The extent to which a resource is used for the intended purpose. |
| efficientnoun | (obsolete) A cause; something that causes an effect. |
| effectnoun | The result or outcome of a cause. |
| adequacynoun | The quality of being sufficient, adequate or able to meet the needs. |
| validitynoun | The state of being valid, authentic or genuine. |
| successnoun | The achievement of one's aim or goal. |
| performancenoun | The act of performing; carrying into execution or action; execution; achievement; accomplishment; representation by action. |
| cost-effectivenessnoun | The property of being cost-effective. |
| potencynoun | (usually of men) Sexual virility: the ability to become erect or achieve orgasm. |
| impactnoun | (figurative, proscribed) A significant or strong influence or effect. |
| ineffective | Not having the desired effect; ineffectual; otiose. |
| placebonoun | (medicine) A dummy medicine containing no active ingredients; an inert treatment. |
| efficienciesnoun | The extent to which a resource is used for the intended purpose. |
| trialsnoun | An occasion on which a person or thing is tested to find out how well they perform or how suitable they are. |
⚡ Words Strongly Associated with "Efficacy"
These words statistically appear in the same text as "efficacy" (Google Books Ngrams).
🎨 Adjectives for "Efficacy"
Popular adjectives used to describe this word in books.
🏷️ Nouns for "Efficacy"
Common nouns this word is used to describe.
📝 Common Phrases with "Efficacy"
Words that come before
🌐 Broader and Narrower Concepts
More Specific (hyponyms)
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