Synonyms & Antonyms of effective

2 having the power to persuade
  • made an effective argument in favor of the proposal

Synonyms for effective

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Antonyms for effective

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Frequently Asked Questions About effective

How does the adjective effective contrast with its synonyms?

Some common synonyms of effective are effectual, efficacious, and efficient. While all these words mean "producing or capable of producing a result," effective stresses the actual production of or the power to produce an effect.

an effective rebuttal

When can effectual be used instead of effective?

The words effectual and effective can be used in similar contexts, but effectual suggests the accomplishment of a desired result especially as viewed after the fact.

the measures to stop the pilfering proved effectual

When could efficacious be used to replace effective?

The words efficacious and effective are synonyms, but do differ in nuance. Specifically, efficacious suggests possession of a special quality or virtue that gives effective power.

a detergent that is efficacious in removing grease

Where would efficient be a reasonable alternative to effective?

While in some cases nearly identical to effective, efficient suggests an acting or a potential for action or use in such a way as to avoid loss or waste of energy in effecting, producing, or functioning.

an efficient small car

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Time Traveler for effective

Time Traveler

The first known use of effective was in the 14th century

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Last Updated

28 May 2020

Cite this Entry

“Effective.” Thesaurus, Merriam-Webster, Accessed 3 Jul. 2020.

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More from Merriam-Webster on effective

Dictionary: Definition of effective

Rhyming Dictionary: Words that rhyme with effective

Medical Dictionary: Definition of effective

Spanish Central: Translation of effective

Nglish: Translation of effective for Spanish Speakers

Britannica English: Translation of effective for Arabic Speakers

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