Not having the desired effect

• useless

  1. Having no use; unserviceable; worthless
  2. (Pejorative, of a person) good-for-nothing; not dependable.
  3. Incapable of acting or functioning effectively; ineffectual or inept:

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  1. Having no use; unserviceable; worthless
  2. (Pejorative, of a person) good-for-nothing; not dependable.
  3. Incapable of acting or functioning effectively; ineffectual or inept:

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• inefficient

  1. Not producing the intended result; ineffective:
  2. Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workers; an inefficient administrator.
  3. Lacking the necessary ability; unskilled; incompetent

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  1. Not producing the intended result; ineffective:
  2. Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workers; an inefficient administrator.
  3. Lacking the necessary ability; unskilled; incompetent

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• inefficacious

  1. Incapable of having the intended consequence.
  2. Not efficacious; unable to produce the desired effect
  3. Not capable of producing a desired effect or result; ineffective.

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  1. Incapable of having the intended consequence.
  2. Not efficacious; unable to produce the desired effect
  3. Not capable of producing a desired effect or result; ineffective.

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• ineffectual

  1. Worthless
  2. Not effectual; not producing or not able to produce the desired effect
  3. Lacking forcefulness or effectiveness; inadequate or incompetent:

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  1. Worthless
  2. Not effectual; not producing or not able to produce the desired effect
  3. Lacking forcefulness or effectiveness; inadequate or incompetent:

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