OpenSynonym

efficacious

The word “efficacious” has 4 syllables: ef-fi-ca-cious.

It's pronounced as /ˌɛfɪˈkeɪʃəs/.

What is synonym and antonym for efficacious?

In the thesaurus, “efficacious” has 3 synonyms and 8 antonyms.

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

Synonyms for efficacious

Antonyms for efficacious

  • fruitless
  • incapable
  • ineffective
  • ineffectual
  • inefficient
  • inoperative
  • unproductive
  • useless

Meanings of efficacious

  • adjective
    1. Effective; possessing efficacy.

Example Sentences

  • The medicine proved efficacious in treating the patient's symptoms.
  • Proper planning and organization are efficacious strategies for productivity.
  • The company implemented an efficacious marketing campaign that boosted sales significantly.
  • Education is widely recognized as an efficacious tool for social mobility.
  • The lawyer presented an efficacious argument that persuaded the jury to deliver a favorable verdict.

On this page you'll find 11 synonyms, antonyms, or another words to efficacious, such as: effective, efficient, fruitless, incapable, ineffective, ineffectual, inefficient.

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

efficacity

Word List