efficacious
/ɛf.ɪ.ˈkeɪ.ʃəs/
Group 18Difficulty 2/3
Definition
- (adjective)
- Successful in producing a desired or intended result; effective GRE
Example in Context
Clinical trials demonstrated that the new treatment was significantly more efficacious than existing therapies, with fewer side effects.
Synonyms
effectivepotentproductive
Etymology
Capable of accomplishing the intended effect.
- efficere (Latin) — to accomplish
Memory Aid
🐟Sounds like “efficacious fish”
When the EFFICACIOUS FISH catches its prey in one swift gulp, it’s effective at mealtime!
Visual Association
🎯A target hit perfectly by an arrow, representing success and effectiveness.
Semantic Clusters
Synonym Groups
Frequently Asked Questions
What does “efficacious” mean on the GRE?
efficacious (adjective) means “Successful in producing a desired or intended result; effective”. Clinical trials demonstrated that the new treatment was significantly more efficacious than existing therapies, with fewer side effects.
How to remember “efficacious” for the GRE?
Mnemonic: “efficacious” sounds like “efficacious fish”. When the EFFICACIOUS FISH catches its prey in one swift gulp, it’s effective at mealtime!
What are synonyms for “efficacious”?
Common synonyms: effective, potent, productive.