- (v.t.) To put off; to postpone; as, to retard the attacks of old age; to retard a rupture between nations.
- (v.i.) To stay back.
- (n.) Retardation; delay.
- (v.t.) To keep delaying; to continue to hinder; to prevent from progress; to render more slow in progress; to impede; to hinder; as, to retard the march of an army; to retard the motion of a ship; -- opposed to accelerate.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). retard. Retrieved September 22, 2026, from http://smartdefine.org/retard/definitions/2055259 |
| Chicago | Webster's. 2011. "retard" http://smartdefine.org/retard/definitions/2055259 (accessed September 22, 2026). |
| Harvard | Webster's 2011, retard, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/retard/definitions/2055259>. |
| MLA | Webster's. "retard" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/retard/definitions/2055259> |