Effective

/əˈfɛktɪv/

Last Updated: January 2, 2026 at 12:30 PM

Scrabble:20 ptsWWF:22 pts9 letters

Definition of Effective

adjective

  1. Having the power to produce a required effect or effects.

    "The pill is an effective method of birth control."

  2. Producing a decided or decisive effect.

    "The president delivered an effective speech!"

  3. Efficient, serviceable, or operative, available for useful work.

    "How long does it take to make a bunch of civilians an effective military force?"

  4. Actually in effect.

    "The curfew is effective at midnight."

  5. (of a cycle or divisor) Having no negative coefficients.

Anagrams of Effective

Words You Can Make

34 words can be made from the letters in "effective":

+1 Letter Anagrams

Words formed by adding one letter to "effective" and rearranging:

Synonyms & Antonyms

SYNONYMS

efficacious