Adequate and Unsustained
Opposite meaning words
Adequate
Adequate adjective - Of a level of quality that meets one's needs or standards.
Unsustained is an antonym for adequate.
Unsustained
Cite this Source
Unsustained and Adequate. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/adequate/unsustained
Adequate & Unsustained. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/adequate/unsustained>.
Unsustained or Adequate. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/adequate/unsustained.
Google Ngram Viewer shows how "adequate" and "unsustained" have occurred on timeline