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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.

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The company expects to appoint Derek Mulvey, its vice president of finance, as interim CFO effective with McDonough’s departure on Oct.

From The Wall Street Journal Aug. 28, 2026

Robinson was a complete contrast yet no less effective.

From BBC Aug. 28, 2026

It could be particularly important for people with advanced retinal degeneration who currently have no effective treatment options.

From Science Daily Aug. 28, 2026

Apple TV, the streaming service known for series like “Ted Lasso” and “Severance,” is raising its prices, effective immediately.

From Los Angeles Times Aug. 28, 2026

Balderdash was not only a fun word to say but an effective one.

From "Not Nothing" by Gayle Forman




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