Synonyms of ineffective in English:

ineffective

adjective

  • 1 they made an ineffective attempt to resolve the issue
    unsuccessful, non-successful, unproductive, fruitless, profitless, unprofitable, abortive, failed, futile, purposeless, worthless, useless, ineffectual, inefficient, inefficacious, inadequate, vain, unavailing, to no effect; idle, feeble, weak, inept, lame
    archaic bootless
    rare unfructuous, inutile
    [Antonyms] effective
  • 2 he was a weak and ineffective president
    ineffectual, inefficient, inefficacious, unsuccessful, powerless, impotent, inadequate, incompetent, incapable, unfit, inept, lame, feeble, weak, poor
    informal useless, hopeless
    [Antonyms] effective
  • Definition of ineffective in:

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    Word of the day envenom
    Pronunciation: ɪnˈvɛnəm
    verb
    put poison on or into; make poisonous