Synonym word of efficacy:

ability, adequacy,capability, capableness,capacity,competence,effect,effectiveness, efficaciousness,energy,force,influence,performance,potency,power,strength,success, sufficiency,use,vigor,virtue,weight


Antonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular
Synonyms:  A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular