Deficient
Deficient adjective - Lacking some necessary part.
Incompetent is a synonym for deficient in inadequate topic. In some cases you can use "Incompetent" instead an adjective "Deficient".
Incompetent
Incompetent adjective - Lacking qualities (as knowledge, skill, or ability) required to do a job.
Deficient is a synonym for incompetent in inept topic. You can use "Deficient" instead an adjective "Incompetent", if it concerns topics such as inadequate.
Nearby Words: incompetence, incompetently
Mutual synonyms
Related pairs
- inapt and deficient
- inapt and incompetent
- inferior and deficient
- inferior and incompetent
- imperfect and deficient
- imperfect and incompetent
- poor and deficient
- poor and incompetent
- unqualified and deficient
- unqualified and incompetent
- unsuitable and deficient
- unsuitable and incompetent
- inadequate and deficient
- inadequate and incompetent
Cite this Source
Incompetent and Deficient. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deficient/incompetent
Deficient & Incompetent. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deficient/incompetent>.
Incompetent or Deficient. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deficient/incompetent.
Google Ngram Viewer shows how "deficient" and "incompetent" have occurred on timeline