- (n.) The quality of being mighty; possession of might; power; greatness; high dignity.
- (n.) Highness; excellency; -- with a possessive pronoun, a title of dignity; as, their high mightinesses.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). mightiness. Retrieved September 25, 2026, from http://smartdefine.org/mightiness/definitions/2032684 |
| Chicago | Webster's. 2011. "mightiness" http://smartdefine.org/mightiness/definitions/2032684 (accessed September 25, 2026). |
| Harvard | Webster's 2011, mightiness, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/mightiness/definitions/2032684>. |
| MLA | Webster's. "mightiness" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/mightiness/definitions/2032684> |