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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.

One area missing from the analysis: innovation in more-efficient procedures, the kind of thing that can make companies more effective in less obvious ways, Wartzman says.

From The Wall Street Journal • Jun. 8, 2026

As the disease advances, the risks of hospitalization, cardiovascular complications, and death rise sharply, making early and effective treatment increasingly important.

From Science Daily • Jun. 8, 2026

The JAA also mandates annual climate surveys: Quantifying the scope of these problems is the first step toward crafting effective solutions.

From Slate • Jun. 8, 2026

"But we still haven't seen a single measure that is effective in reducing the number of tourists."

From BBC • Jun. 7, 2026

I mounted to my chamber; locked myself in; fell on my knees; and prayed in my way—a different way to St. John’s, but effective in its own fashion.

From "Jane Eyre" by Charlotte Brontë




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