What is another word for efficacious?
Pronunciation: [ˌɛfɪkˈe͡ɪʃəs] (IPA) 
Efficacious is an adjective that means something is powerful, effective, or potent. Synonyms for efficacious include successful, efficient, productive, powerful, effective, potent, capable, and impactful. These terms are often used interchangeably to describe things that are accomplished or have the ability to produce a desired result. Other synonyms for efficacious include effective, potent, powerful, successful, and capable. All of these terms describe something that has the ability to achieve a desired outcome or produce a certain effect in a person or situation. Regardless of which word you choose to use, the underlying meaning is the same - something is effective and powerful.
