Thesaurus

effective

adjective

Synonyms and Antonyms of effective

  1. 1 producing or capable of producing a desired result an effective treatment of the once-dreaded disease Synonyms of effective effectual, efficacious, efficient, fruitful, operative, potent, productive Words Related to effective hyperefficient, ultraefficient; adequate, capable, competent; accomplished, adept, consummate, experienced, expert, masterly, practiced (also practised), proficient, skilled, skillful, versed, veteran, virtuoso; cogent, convincing, killer, sound, striking, telling, valid; active, dynamic; useful, working; applicable, feasible, functional, practicable, practical, realizable, usable (also useable), workable Near Antonyms of effective counterproductive; incapable, incompetent, inexperienced, inexpert, unqualified, unseasoned, unskilled, unskillful; abortive, bootless, futile, vain; empty, hollow, idle, pointless, unavailing, unprofitable, unsuccessful; inoperative, worthless Antonyms of effective fruitless, ineffective, ineffectual, inefficient, inoperative, unfruitful, unproductive, useless

  2. 2 having the power to persuade made an effective argument in favor of the proposal Synonyms of effective compelling, conclusive, convincing, decisive, cogent, forceful, persuasive, satisfying, strong, tellingWords Related to effective authoritative, definitive; sound, valid, well-founded; important, significant, weighty; material, pertinent, relevantNear Antonyms of effective groundless, invalid, shaky, unfounded, unsound; inconsequential, insignificant, unimportant; immaterial, irrelevant; feeble, weakAntonyms of effective inconclusive, indecisive, ineffective, uncompelling, unconvincing, unpersuasive

  3. 3 existing in fact and not merely as a possibility made the mistake of confusing the plant's production capacity with its effective output Synonyms of effective concrete, de facto, actual, existent, factual, genuine, real, sure-enough, true, veryWords Related to effective attested, authenticated, confirmed, demonstrated, established, proven, substantiated, valid, validated, verified; incontestable, incontrovertible, indisputable, indubitable, inescapable, irrefutable, undeniable, unquestionable; believable, convincing, literal, realistic, unmistakable, verifiable; authentic, bona fide, real-life, real-world; absolute, certain, final, hard, objective, palpable, positive, substantial, tangible; authoritative, certifiable, certifiedNear Antonyms of effective alleged, assumed, reputed, supposed; conceived, envisaged, envisioned, imagined, pictured, visualized; chimerical (also chimeric), fabled, fanciful, fictional, fictitious, illusory, legendary; fabricated, fake, imaginary, invented, made-up, make-believe, pretend, romantic; abstract, symbolic, unreal; virtualAntonyms of effective conjectural, hypothetical, ideal, inexistent, nonexistent, platonic, possible, potential, suppositional, theoretical (also theoretic)

Synonym Discussion of effective

effective, effectual, efficient, efficacious mean producing or capable of producing a result. effective stresses the actual production of or the power to produce an effect.
    • an effective rebuttal
effectual suggests the accomplishment of a desired result especially as viewed after the fact.
    • the measures to stop the pilfering proved effectual
efficient suggests an acting or a potential for action or use in such a way as to avoid loss or waste of energy in effecting, producing, or functioning.
    • an efficient small car
efficacious suggests possession of a special quality or virtue that gives effective power.
    • a detergent that is efficacious in removing grease


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