| Pronunciation: | | in'efukusee
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 WordNet Dictionary |
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| | Definition: | |
[n] a lack of efficacy |
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INEFFICACY is a 10 letter word that starts with I. |
| | Synonyms: | | inefficaciousness |
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| | Antonyms: | | efficaciousness, efficacy |
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| | See Also: | | ineffectiveness, ineffectuality, ineffectualness |
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| Webster's 1913 Dictionary |
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| | Definition: | | \In*ef"fi*ca*cy\, n. [L. inefficacia. See {In-} not,
and {Efficacy}.]
Want of power to produce the desired or proper effect;
inefficiency; ineffectualness; futility; uselessness;
fruitlessness; as, the inefficacy of medicines or means.
The seeming inefficacy of censures. --Bp. Hall.
The inefficacy was soon proved, like that of many
similar medicines. --James
Gregory.
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