Copious and Deficient

Copious

Copious adjective - Pouring forth in great amounts.
Usage example: a copious rush of words just poured out of the two friends who hadn't seen each other in years

Deficient is an antonym for copious.

Nearby Word: copiously

Deficient

Deficient adjective - Not coming up to an expected measure or meeting a particular need.
Usage example: too deficient in common sense to be trusted to stay by himself

Copious is an antonym for deficient.

Nearby Words: deficiency, deficit, deficiently
Cite this Source
Deficient and Copious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/copious/deficient
Copious & Deficient. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/copious/deficient>.
Deficient or Copious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/copious/deficient.
Google Ngram Viewer shows how "copious" and "deficient" have occurred on timeline