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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:

What’s really effective about that is, number one, you’re speaking to the manager’s goals and making it in their interest to do this.

From The Wall Street Journal Sep. 21, 2026

Looking at the cauldron of conflicts convulsing the world, the question is ever more pressing as to whether effective action is possible to stop the damage being done or ensure accountability when it does.

From BBC Sep. 19, 2026

Bistrifluron is only one part of UCR's effort to make targeted termite treatment more effective.

From Science Daily Sep. 19, 2026

However, Purser cautioned that setting up an effective evaluator system won’t be sufficient to catch all AI threats, as unforeseen risks will inevitably emerge.

From MarketWatch Sep. 19, 2026

Savery’s engine, and Papin’s second engine, needed to build up a high pressure in order to be effective but, in practice, boilers and cylinders could not be made that withstood such pressure.

From "The Invention of Science" by David Wootton




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