efficacious

/,efi'keiʃəs/

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Word: Efficacious

Part of Speech: Adjective

Usage Instructions:

1. When to Use: You can use "efficacious" when talking about something that successfully accomplishes its purpose. It is often used in formal or academic contexts.

2. How to Use: Place "efficacious" before a noun. For example, "efficacious treatment" or "efficacious strategies."

Example Sentences:

1. Simple: The new medicine is efficacious in treating headaches.

2. Advanced: The researchers concluded that the innovative teaching methods were more efficacious than traditional ones in improving student engagement.

Word Variants:

• Efficacy (noun): The ability to produce a desired effect. For example, "The efficacy of the new drug was tested in clinical trials."
• Efficaciously (adverb): In an effective manner. For example, "The team worked efficaciously to meet the deadline."

Different Meanings:

While "efficacious" specifically refers to producing an effect, it is closely related to "effective," which generally means working in a way that produces a result. However, "efficacious" often implies a more direct and certain ability to produce the intended outcome.

Synonyms:

• Effective
• Productive
• Potent
• Powerful
• Successful

Idioms and Phrasal Verbs:

While "efficacious" itself is not commonly used in idioms or phrasal verbs, you might encounter phrases like:

Summary:

In summary, "efficacious" is a formal adjective used to describe something that effectively produces the desired result. It is often used in contexts such as medicine, strategies, and methods.

Academic

Adjective

1. 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
2. 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

• effective
• effectual