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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:

On numerous occasions last season, Guardiola made clear he felt the Frenchman would be more effective staying between the lines, close to Erling Haaland.

From BBC Sep. 13, 2026

The findings suggest that longevity may depend in part on an immune system that remains highly effective against both infectious organisms and cancer.

From Science Daily Sep. 12, 2026

That combination has made AI a surprisingly effective coach in my quest to become a more thoughtful, compassionate person.

From The Wall Street Journal Sep. 12, 2026

According to the suit, Jane Doe’s complaints and reports to her supervisors and human resources about her alleged treatment were dismissed and that they “failed to take timely or effective corrective action.”

From Los Angeles Times Sep. 11, 2026

Kepler was never able to be an effective observer of the heavens because of his bad eyesight, and in Graz he had no access to observational data.

From "The Scientists" by John Gribbin




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