ineffectual

If you are a coach with a losing team that doesn't listen to you, don't be surprised if you are called ineffectual. It means too weak to produce the desired effect.

Ineffectual is similar to ineffective, but while ineffective implies that something simply doesn't work, ineffectual carries with it the idea of weakness too. An old computer might be ineffective for creating state-of-the-art digital presentations; a boss who looks the other way while her employees slack off all day, on the other hand, is ineffectual.

Definitions of ineffectual
  1. adjective
    not producing an intended effect
    synonyms: ineffective, uneffective
    idle
    not in action or at work
    toothless
    lacking necessary force for effectiveness
    unproductive
    not producing desired results
    inefficacious
    lacking the power to produce a desired effect
    inefficient
    not producing desired results; wasteful
    powerless
    lacking power
    useless
    having no beneficial use or incapable of functioning usefully
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    Antonyms:
    effective, effectual, efficacious
    producing or capable of producing an intended result or having a striking effect
    hard-hitting, trenchant
    characterized by or full of force and vigor
    impelling
    markedly effective as if by emotional pressure
    impressive, telling
    producing a strong effect
    rough-and-ready
    crude but effective for the purpose at hand
    efficacious
    marked by qualities giving the power to produce an intended effect
    efficient
    being effective without wasting time or effort or expense
    potent, stiff, strong
    having a strong physiological or chemical effect
    powerful
    having great power or force or potency or effect
    useful, utile
    being of use or service
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  2. adjective
    producing no result or effect
    “the therapy was ineffectual
    synonyms: futile, otiose, unavailing
    useless
    having no beneficial use or incapable of functioning usefully
  3. adjective
    lacking in power or forcefulness
    “an ineffectual ruler”
    synonyms: ineffective, unable
    impotent
    lacking power or ability
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