- (a.) Capable of being doubted; questionable.
- (a.) Worthy of being feared; redoubtable.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). doubtable. Retrieved September 22, 2026, from http://smartdefine.org/doubtable/definitions/2000181 |
| Chicago | Webster's. 2011. "doubtable" http://smartdefine.org/doubtable/definitions/2000181 (accessed September 22, 2026). |
| Harvard | Webster's 2011, doubtable, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/doubtable/definitions/2000181>. |
| MLA | Webster's. "doubtable" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/doubtable/definitions/2000181> |