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inebriate
inedible
inedited
ineducable
ineffable
ineffaceable
ineffective
ineffectual
inefficacious
inefficient
inelastic
inelegant
ineligible
ineluctable
inept
inequable
inequality
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inefficacious
in·ef·fi·ca·cious [ in èffi káyshəss ]


adjective 
Definition:
 
not helpful: not having a positive or useful effect ( formal )


in·ef·fi·ca·cious·ly adverb
in·ef·fi·ca·cious·ness noun
in·ef·fi·cac·i·ty [ in èffi kássətee ] noun
in·ef·fi·ca·cy [ in éffikəssee ] noun
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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