Synonyms for EFFECTIVE: efficient, productive, potent, adequate, efficacious, effectual, operative, useful; Antonyms of EFFECTIVE: ineffective, useless, inefficient, ineffectual, …

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

Effective definition: adequate to accomplish a purpose; producing the intended or expected result.. See examples of EFFECTIVE used in a sentence.

1. adequate to accomplish a purpose; producing the intended or expected result: effective teaching methods. 2. in operation or in force; functioning; operative: The law becomes …

Jun 14, 2016 · producing the result that is wanted or intended; producing a successful result. Aspirin is a simple but highly effective treatment. Some people believe that violence is an …

Jun 2, 2025 · effective (comparative more effective, superlative most effective) Having the power to produce a required effect or effects. The pill is an effective method of birth control.

Find 856 different ways to say EFFECTIVE, along with antonyms, related words, and example sentences at Thesaurus.com.

Effectual and effective describe concepts of success and capability, but from different angles. Effectual emphasizes the potential to achieve a goal, while effective confirms the successful …

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

effective is applied to that which has the power to, or which actually does, produce an effect: an effective action, remedy, speech. effectual is used esp. of that which produces the effect …