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inefficacious

 - 2 dictionary results

in⋅ef⋅fi⋅ca⋅cious

  [in-ef-i-key-shuhs]
Use inefficacious in a Sentence
–adjective
not able to produce the desired effect; ineffective.
Origin:
1650–60; in- 3 + efficacious

Related forms:
in⋅ef⋅fi⋅ca⋅cious⋅ly, adverb
in⋅ef⋅fi⋅ca⋅cious⋅ness, in⋅ef⋅fi⋅cac⋅i⋅ty  [in-ef-i-kas-i-tee] , noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To inefficacious
in·ef·fi·ca·cious   (ĭn-ěf'ĭ-kā'shəs)   
adj.  Not capable of producing a desired effect or result; ineffective.
in·ef'fi·ca'cious·ly adv., in·ef'fi·ca'cious·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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