Deficient
Deficient adjective - Falling short of a standard.
Usage example: woefully deficient eyesight kept him out of military service
Unsatisfactory is a synonym for deficient in imperfect topic. In some cases you can use "Unsatisfactory" instead an adjective "Deficient", when it comes to topics like inadequate, insufficient. popular alternative
Unsatisfactory
Unsatisfactory adjective - Falling short of a standard.
Usage example: an unsatisfactory first attempt at building a birdhouse
Deficient is a synonym for unsatisfactory in inadequate topic. You can use "Deficient" instead an adjective "Unsatisfactory", if it concerns topics such as insufficient. popular alternative
Nearby Word: unsatisfactorily
Mutual synonyms
Related pairs
- inferior and deficient
- inferior and unsatisfactory
- imperfect and deficient
- imperfect and unsatisfactory
- poor and deficient
- poor and unsatisfactory
- unsuitable and deficient
- unsuitable and unsatisfactory
- incompetent and deficient
- incompetent and unsatisfactory
- inadequate and deficient
- inadequate and unsatisfactory
- weak and deficient
- weak and unsatisfactory
Cite this Source
Unsatisfactory and Deficient. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deficient/unsatisfactory
Deficient & Unsatisfactory. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deficient/unsatisfactory>.
Unsatisfactory or Deficient. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deficient/unsatisfactory.
Google Ngram Viewer shows how "deficient" and "unsatisfactory" have occurred on timeline