effective Synonyms
Another word for effective
• adjective (Context 1)
Successful in producing a desired or intended result.
"The new teaching method proved highly efficacious in improving student comprehension."
• adjective (Context 2)
Coming into operation or officially taking effect from a specified time (especially of a law, rule, or policy).
"The revised safety regulations will become operative at the beginning of next month."
• adjective (Context 3)
Fulfilling a specified function in practice or reality, though not formally or explicitly acknowledged as such.
"Following the director's sudden retirement, the deputy assumed de facto control of the agency."
• adjective (Context 4)
Producing a strong, vivid, or favorable impression on an audience or observer.
"The keynote speaker delivered a simple yet remarkably compelling closing argument."
Opposites of effective
The opposite of effective shifts depending on context. Common opposites include: