Thesaurus.com
Dictionary.com
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.

LLC, sent termination notices to more than 300 employees effective July 4.

From Los Angeles Times • Jun. 10, 2026

Another, the Rybar Telegram channel, credited Madyar with creating "the most effective formation of its kind" within the Ukrainian army.

From Barron's • Jun. 10, 2026

But like other analysts, she has some reservations about how effective a rate increase will be.

From The Wall Street Journal • Jun. 9, 2026

The JAA also mandates annual climate surveys: Quantifying the scope of these problems is the first step toward crafting effective solutions.

From Slate • Jun. 8, 2026

It’s a very effective image, I’ll admit to you.

From "The Many Assassinations of Samir, the Seller of Dreams" by Daniel Nayeri




Vocabulary lists containing effective


Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "effective" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com