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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.

See Examples For:

The Dodgers can say their schedule starts in October, and their goal is for everyone to be healthy and effective then.

From Los Angeles Times ● Sep. 24, 2026

Neutrons are particularly useful for detecting light elements on the periodic table, especially hydrogen, while X rays are highly effective at revealing heavier elements.

From Science Daily ● Sep. 24, 2026

"While we still need more empirical data to know if simulated shopping can satisfy a consumer urge, evidence from simulated consumption in gaming shows it can be highly effective," he says.

From BBC ● Sep. 23, 2026

The data suggest the fundamental problem is the scarcity of effective schools.

From The Wall Street Journal ● Sep. 23, 2026

As more effective procedures were developed, surgery and wound treatment became safer.

From "Ambushed!" by Gail Jarrow




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