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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.

See Examples For:

According to Robert McClelland, senior fellow at the Tax Policy Center, a think tank, the highest effective rate—the amount of tariffs collected divided by the total value of imports—was 3% in Trump’s first term.

From The Wall Street Journal Jul. 30, 2026

Such long-lasting events worsen the stress heat puts on people’s bodies, and so does humidity, which can also render some solutions like taking cover in the shade less effective, Turner said.

From Los Angeles Times Jul. 30, 2026

Imagine an NFL referee walking onto the field with two minutes left in the game to announce that the end zone has moved 10 yards downfield, effective immediately.

From Slate Jul. 30, 2026

The plaintiffs argue the winners were not selected randomly, as Musk had suggested, but chosen because they could serve as effective spokespeople for the group.

From Barron's Jul. 30, 2026

Proper medical treatment couldn’t be effective, Farmer believed, without serving a patient’s other needs: basic education, habitable housing, clean water, food security, and hope for a better future.

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




Vocabulary lists containing effective


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