Effective typically describes things—such as policies, treatments, arguments, and techniques—that do what they are intended to do. People can also be described as effective when they accomplish what …

EFFECTIVE meaning: 1. successful or achieving the results that you want: 2. (used about a treatment or drug) working…. Learn more.

EFFECTIVE meaning: 1 : producing a result that is wanted having an intended effect; 2 : in use active

Effective, effectual, efficacious, efficient refer to that which is able to produce a (desired) effect.

Apr 3, 2026 · Adjective effective (comparative more effective, superlative most effective) Having the power to produce a required effect or effects.

Definition of effective adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Effective and efficient are often confused, but they have slightly different meanings. If you are effective, you do a job properly; if you are efficient, you do it quickly and easily.

Find 28 different ways to say EFFECTIVELY, along with antonyms, related words, and example sentences at Thesaurus.com.

The adjective effective has many shades of meaning, but you'll usually see it describing something that's able to produce a desired goal. Effective traces back to the Latin word effectivus, from efficere, …

Effective refers to successfully producing a desired or intended result, functioning efficiently or adequately, or having an intended or expected outcome. It emphasizes the capability of producing a …