What context can I use each word in?
Learn when and how to use these words with these examples!
efficacious
Example
The new medication proved to be efficacious in treating the patient's symptoms. [efficacious: adjective]
Example
The company implemented an efficacious marketing strategy that resulted in increased sales. [efficacious: adjective]
effective
Example
The new policy was effective in reducing the number of accidents in the workplace. [effective: adjective]
Example
The team's effective communication skills led to a successful project outcome. [effective: adjective]
Good things to know
Which word is more common?
Effective is more commonly used than efficacious in everyday language, making it a more versatile word that can be used in various contexts and situations.
What’s the difference in the tone of formality between efficacious and effective?
Efficacious is a more formal term than effective, making it more suitable for formal or academic writing rather than casual conversation or everyday language.
