Thesaurus: synonyms and related words
Examples from literature
- Caution is at least as efficacious a protection against him as courage.
- Many efforts were made for his release, the most efficacious by the Queen of France.
- Pieces of certain woods are believed efficacious for rheumatism, and old men especially may often be seen with them tied around the limbs.
- The penalty should certainly prove efficacious, he observed lightly.
- They resort to any and every agent which has been proved efficacious, whether it be vegetable or mineral.