(a.) Of or pertaining to mystery; containing a mystery; difficult or impossible to understand; obscure not revealed or explained; enigmatical; incomprehensible.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). mysterious. Retrieved September 25, 2026, from http://smartdefine.org/mysterious/definitions/2035650 |
| Chicago | Webster's. 2011. "mysterious" http://smartdefine.org/mysterious/definitions/2035650 (accessed September 25, 2026). |
| Harvard | Webster's 2011, mysterious, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/mysterious/definitions/2035650>. |
| MLA | Webster's. "mysterious" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/mysterious/definitions/2035650> |