inefficacious
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.in·ef·fi·ca·cious
adjective \(ˌ)i-ˌne-fə-ˈkā-shəs\Definition of INEFFICACIOUS
: lacking the power to produce a desired effect : ineffective
— in·ef·fi·ca·cious·ly adverb
— in·ef·fi·ca·cious·ness noun
Examples of INEFFICACIOUS
- <his efforts to restore the neglected houseplant back to health were belated and sadly inefficacious>
- <an inefficacious medication for a rare form of tuberculosis>
First Known Use of INEFFICACIOUS
1658
Related to INEFFICACIOUS
- Synonyms
- counterproductive, feckless, hamstrung, ineffectual, ineffective, inefficient, inexpedient
- Antonyms
- effective, effectual, efficacious, efficient, expedient, operant, ultraefficient
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