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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:

One group was given compression garments; the other group was given a placebo tablet that they were told was equally as effective as compression.

From Science Daily ● Oct. 14, 2026

Stanway was even more effective in large part to a new-look midfield which included 20-year-old debutant Lexi Potter.

From BBC ● Oct. 13, 2026

Microsoft president Brad Smith warned Tuesday that industry and governments must "act with urgency" to create "real and effective safety standards" to contain the risks linked to artificial intelligence.

From Barron's ● Oct. 13, 2026

The position of AI leaders like Amodei is that allowing a time lag in the case of artificial intelligence might leave it too late for regulation to be effective.

From Los Angeles Times ● Oct. 13, 2026

While the official center of the government remained in the executive and congressional offices at Philadelphia, the truly effective centers of power were located in two political partnerships based on personal trust.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis




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