Deficient
Deficient adjective - Falling short of a standard.
Usage example: woefully deficient eyesight kept him out of military service
Inferior is a synonym for deficient in imperfect topic. In some cases you can use "Inferior" instead the word "Deficient" as an adjective or a noun, when it comes to topics like defective, unsatisfactory. popular alternative
Inferior
Inferior adjective - Of little or less value or merit.
Usage example: a girl who has always felt inferior to her older sister
Deficient is a synonym for inferior in second-rate topic. You can use "Deficient" instead an adjective "Inferior", if it concerns topics such as substandard. popular alternative
Nearby Word: inferiority
Mutual synonyms
Cite this Source
Inferior and Deficient. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deficient/inferior
Deficient & Inferior. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deficient/inferior>.
Inferior or Deficient. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deficient/inferior.
Google Ngram Viewer shows how "deficient" and "inferior" have occurred on timeline