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Definitions

effective

[ih-fek-tiv, ee-fek‐] / ɪˈfɛk tɪv, iˈfɛk‐ /




Usage

What are other ways to say effective? The adjective effective is applied to a person or a thing that has the power to, or which actually does, produce an effect: an effective boss, remedy, speech. Effectual is used especially of that which produces the effect desired or intended, or a decisive result: An effectual bombardment silenced the enemy. Efficacious suggests the capability of achieving a certain end: an efficacious plan, medicine. Efficient (applied also to persons) implies the skillful use of energy or industry to accomplish desired results with little waste of effort: efficient methods; an efficient manager. 

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The decrease in net income was due to a lower tax benefit associated with equity-based compensation resulting in a higher effective tax rate, and higher depreciation and amortization, the company said.

From The Wall Street Journal • May 19, 2026

The move to a lower level has proven effective.

From BBC • May 19, 2026

School board member Tanya Ortiz Franklin said the school board remains disciplined and effective.

From Los Angeles Times • May 19, 2026

Media Matters has been very, very effective at this job, which has made it a target, quite honestly.

From Slate • May 18, 2026

Boynton and Edson, however, believed their medicinal remedies were safer and more effective.

From "Ambushed!" by Gail Jarrow




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