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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.

In Mexico, where microfinance lenders have come under fire for charging effective annual interest rates above 400%, a popular lender, Consejo de Asistencia al Microemprendedor, went into liquidation last year.

From The Wall Street Journal • Jun. 11, 2026

But the 24-year-old, a finalist at Queen's last year, showed why she is so effective on grass with a commanding 6-1 6-3 win over world number 44 Siegemund.

From BBC • Jun. 10, 2026

Another, the Rybar Telegram channel, credited Madyar with creating "the most effective formation of its kind" within the Ukrainian army.

From Barron's • Jun. 10, 2026

Kanin is resigning, effective June 11, and fiduciary Jodi Pais Montgomery will take over managing the trust.

From Los Angeles Times • Jun. 9, 2026

“That tactic is...somewhat effective, but you should always have a variety of moves in your repertoire. When you only have one, you become predictable and easy to defeat.”

From "Beasts of Prey" by Ayana Gray




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