inefficacious
[ in-ef-i-key-shuhs ]
/ ˌɪn ɛf ɪˈkeɪ ʃəs /
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adjective
not able to produce the desired effect; ineffective.
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Origin of inefficacious
First recorded in 1650–60; in-3 + efficacious
OTHER WORDS FROM inefficacious
in·ef·fi·ca·cious·ly, adverbin·ef·fi·ca·cious·ness, in·ef·fi·cac·i·ty [in-ef-i-kas-i-tee], /ˌɪn ɛf ɪˈkæs ɪ ti/, nounWords nearby inefficacious
ineffable, ineffaceable, in effect, ineffective, ineffectual, inefficacious, inefficacy, inefficiency, inefficient, in effigy, inegalitarian
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for inefficacious
British Dictionary definitions for inefficacious
inefficacious
/ (ˌɪnɛfɪˈkeɪʃəs) /
adjective
failing to produce the desired effect
Derived forms of inefficacious
inefficaciously, adverbinefficacy (ɪnˈɛfɪkəsɪ), inefficaciousness or inefficacity (ˌɪnɛfɪˈkæsɪtɪ), nounCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
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