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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.

"Targeting these specific neural circuits could become an effective and more localized strategy to treat affective disorders," the researcher concludes.

From Science Daily • Jun. 3, 2026

“There’s no effective way for them to compete with a terrestrial network,” he said.

From MarketWatch • Jun. 3, 2026

The authorization is effective for three years and replaces a previous authorization from March 2019.

From The Wall Street Journal • Jun. 2, 2026

The second generation of the Majorana chip is based on the same principles as the first but is more effective in part because the scientists replaced aluminium with lead as a superconductor.

From BBC • Jun. 2, 2026

That seemed the most effective way to overthrow segregationist Jim Crow laws.

From "Because They Marched" by Russell Freedman




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