Inefficacious
Inefficacious adjective - Not producing the desired result.
Unthrifty and inefficacious are semantically related. In some cases you can use "Unthrifty" instead an adjective "Inefficacious".
Unthrifty
Unthrifty adjective - Given to spending money freely or foolishly.
Inefficacious and unthrifty are semantically related. Sometimes you can use "Inefficacious" instead an adjective "Unthrifty".
Mutual synonyms
Cite this Source
Unthrifty and Inefficacious. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/inefficacious/unthrifty
Inefficacious & Unthrifty. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/inefficacious/unthrifty>.
Unthrifty or Inefficacious. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/inefficacious/unthrifty.
Google Ngram Viewer shows how "inefficacious" and "unthrifty" have occurred on timeline