inefficacious
Americanadjective
adjective
Other Word Forms
Derived Forms
Etymology
Origin of inefficacious
First recorded in 1650–60; in- 3 + efficacious
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Most nostrums hit at only one of the causes and so are frequently inefficacious.
From Time Magazine Archive
Remedies for the starling plague were suggested, some facetious, some earnest, all equally inefficacious.
From Time Magazine Archive
Failing in its usual effect, the medicine was no longer continued; but every thing that was tried proved equally inefficacious, and he did not long survive.
From An Account of the Foxglove and some of its Medical Uses With Practical Remarks on Dropsy and Other Diseases by Withering, William
Imperfectly mixed coal-tar-creosote dips are liable to poison animals even when not used in stronger solutions than that recommended by the manufacturers, and are also likely to be inefficacious.
From Special Report on Diseases of Cattle by United States. Bureau of Animal Industry
My counsels and remonstrances were not wholly inefficacious.
From Ormond, Volume III (of 3) or, The Secret Witness by Brown, Charles Brockden
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
