- (a.) Passing from a higher to a lower condition; declining from a more perfect state of organization; regressive.
- (a.) Tending to retrograde; going or moving backward; declining from a better to a worse state.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). retrogressive. Retrieved September 21, 2026, from http://smartdefine.org/retrogressive/definitions/2055417 |
| Chicago | Webster's. 2011. "retrogressive" http://smartdefine.org/retrogressive/definitions/2055417 (accessed September 21, 2026). |
| Harvard | Webster's 2011, retrogressive, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/retrogressive/definitions/2055417>. |
| MLA | Webster's. "retrogressive" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/retrogressive/definitions/2055417> |