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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.

“So there’s this illusion of control that is really effective on a lot of young people,” Fields said, “especially with a get-rich-quick kind of attitude.”

From MarketWatch • Apr. 17, 2026

"Patients should speak with their healthcare provider about the safest and most effective options for managing their symptoms."

From Science Daily • Apr. 16, 2026

Conagra Brands has tapped veteran consumer-products executive John Brase to replace Sean Connolly as president and chief executive of the food maker, effective June 1.

From The Wall Street Journal • Apr. 16, 2026

"I feel good, I feel fresh. I just try and get on the ball as much as I can and play the effective passes," Ingle said after Tuesday's comfortable home victory over the Albanians.

From BBC • Apr. 16, 2026

Kim, Farmer, and Bayona had proven that effective MDR treatment was possible, even in a slum in a poor country.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French




Vocabulary lists containing effective