Synonyms and Antonyms of effective (ĭ-fĕktĭv)

useful producing the expected result effectual adequate operant valid capable operational efficient competent compelling strong vigorous operative powerful in-force trenchant practical telling cogent efficacious productive dynamic dynamical forceful hard-hitting able active actual availing causal direct incisive influential moving persuasive potent striking good in-effect serviceable producing the desired result sufficient yielding forcible

incapable inoperative useless unproductive impotent weak fruitless ineffective inefficient

proactive economical thrive cost-effective robust appropriate effectively cost-efficient consistent optimal improved be

effective ₂₀

evictee ₁₂

effect ₁₄ effete ₁₂

civet ₁₀ evict ₁₀ evite ₈

viff ₁₃ fief ₁₀ fife ₁₀ five ₁₀ teff ₁₀ tiff ₁₀ fice ₉ vice ₉ feet ₇ fete ₇ cete ₆ cite ₆ etic ₆

eff ₉ iff ₉ eft ₆ eve ₆ fee ₆ fet ₆ fie ₆ fit ₆ vee ₆ vet ₆ vie ₆ cee ₅ ice ₅ tec ₅ tic ₅ tee ₃ tie ₃

ef ₅ fe ₅ if ₅ et ₂ it ₂ te ₂ ti ₂