(a.) Of adamant; hard as adamant.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). adamantean. Retrieved September 24, 2026, from http://smartdefine.org/adamantean/definitions/1970774 |
| Chicago | Webster's. 2011. "adamantean" http://smartdefine.org/adamantean/definitions/1970774 (accessed September 24, 2026). |
| Harvard | Webster's 2011, adamantean, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/adamantean/definitions/1970774>. |
| MLA | Webster's. "adamantean" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/adamantean/definitions/1970774> |