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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.

When I’m using AI to help with especially high-stakes research, I take steps that make these accuracy checks even more effective.

From The Wall Street Journal • May 19, 2026

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

From Los Angeles Times • May 19, 2026

Guardiola utilised diminutive Argentina midfielder Javier Mascherano as a central defender at Barcelona, then transformed Bayern Munich's outstanding right-back Phillip Lahm into an equally effective holding midfield player.

From BBC • May 18, 2026

But as far as second-choice options go, using misoprostol by itself is a remarkably effective alternative.

From Slate • May 18, 2026

"I had to find a way to do it. In the country itself I was unable to do any effective work. So, therefore, I had to find a way to leave the country."

From Nazi Saboteurs by Samantha Seiple




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