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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.

Before moving into human trials, the researchers plan to test the treatment in additional cancer types, including aggressive pancreatic cancer, to determine whether the approach can be effective across a wide range of tumors.

From Science Daily

The team hopes the findings will eventually support earlier diagnosis and more effective strategies to slow progression.

From Science Daily

The NBA knows that it will need to do more than levy fines to dissuade tanking, for the simple reason that tanking is extremely effective.

From The Wall Street Journal

“I don’t know that automated license plate readers are all that effective when owned by neighbors living on the street who decided to get together.”

From Los Angeles Times

"Obesity is a complex, chronic disease with serious health consequences. These medicines are highly effective and are helping many people," Ariaee says.

From Science Daily