Synonyms for efficacious
ˌɛf ɪˈkeɪ ʃəsef·fi·ca·cious

Princeton's WordNetRate these synonyms:0.0 / 0 votes

1. efficaciousadjective

   marked by qualities giving the power to produce an intended effect

   "written propaganda is less efficacious than the habits and prejudices...of the readers"-Aldous Huxley; "the medicine is efficacious in stopping a cough"

   Synonyms:
   effectual, effective

   Antonyms:
   inefficacious

2. effective, effectual, efficaciousadjective

   producing or capable of producing an intended result or having a striking effect

   "an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation"-LewisMumford; "effective teaching methods"; "effective steps toward peace"; "made an effective entrance"; "his complaint proved to be effectual in bringing action"; "an efficacious law"

   Synonyms:
   sound, effective, in effect(p), efficient, effectual, legal, in force(p), good

   Antonyms:
   inefficacious

Dictionary of English SynonymesRate these synonyms:0.0 / 0 votes

1. efficaciousadjective

   Synonyms:
   effectual, effective, powerful, active, operative, efficient, energetic, of adequate power

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. efficaciousadjective

   Synonyms:
   potent, effectual, effective, productive

   Antonyms:
   inefficacious

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "efficacious":

   effective, efficient

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How to use efficacious in a sentence?

1. Anthony Fauci:

   If you have a highly efficacious vaccine, and only a relatively small 40, 50 % of the people get vaccinated, you're not going to get the herd immunity you need, what we do need is we need to get as many people as possible vaccinated.

2. Don Sodora:

   It's still being tested, merck is still trying to figure out how efficacious it is, but it can really provide an opportunity where you can start protecting people.

3. Anthony Fauci:

   When the American public hears that, you should be assured that that is the case and if you get an overwhelming majority of the people vaccinated with a highly efficacious vaccine, we can reasonably quickly get into herd immunity that would be a blanket of protection for the country.

4. Carolyn Lam Su Ping:

   If you have a mood or anxiety disorder, many excellent treatments are available; the most efficacious is some form of cognitive-behavior therapy with or without medication.

5. Maria Montessori:

   If an educational act is to be efficacious, it will be only that one which tends to help toward the complete unfolding of life. To be thus helpful it is necessary rigorously to avoid the arrest of spontaneous movements and the imposition of arbitrary tasks.