OpenSynonym

efficacy

The word “efficacy” has 4 syllables: ef-fi-ca-cy.

It's pronounced as /ˈɛfɪkəsi/.

What is synonym and antonym for efficacy?

In the thesaurus, “efficacy” has 7 synonyms and 3 antonyms.

Here are synonyms and antonyms for efficacy along with examples of usage in sentences.

Synonyms for efficacy

Antonyms for efficacy

  • inadequacy
  • ineffectiveness
  • inefficiency

Meanings of efficacy

  • noun
    1. Ability to produce a desired effect under ideal testing conditions.
    2. Degree of ability to produce a desired effect.

Example Sentences

  • The efficacy of the vaccine was demonstrated by the significant decrease in infection rates.
  • Studies have shown the efficacy of mindfulness meditation in reducing stress and anxiety.
  • The company conducted trials to assess the efficacy of its new product before launching it to the market.
  • The therapist explained the efficacy of cognitive-behavioral therapy in treating various mental health conditions.
  • Public health campaigns aim to increase awareness about the efficacy of handwashing in preventing the spread of diseases.

On this page you'll find 10 synonyms, antonyms, or another words to efficacy, such as: adequacy, competence, effectiveness, efficaciousness, efficiency, inadequacy, ineffectiveness.

Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.

Related Words

abortiveness

  • barrenness
  • bootlessness
  • deficiency
  • fruitlessness
  • ineffectiveness
  • ineffectuality
  • inefficaciousness
  • inefficacy
  • otioseness
  • unavailingness
  • unprofitability
  • unprofitableness
  • vanity

edge

effectiveness

effectualness

efficaciousness

Word List