(a.) Not stable; not standing fast or firm; unstable; prone to change or recede from a purpose; mutable; inconstant.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). instable. Retrieved September 20, 2026, from http://smartdefine.org/instable/definitions/2022262 |
| Chicago | Webster's. 2011. "instable" http://smartdefine.org/instable/definitions/2022262 (accessed September 20, 2026). |
| Harvard | Webster's 2011, instable, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/instable/definitions/2022262>. |
| MLA | Webster's. "instable" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/instable/definitions/2022262> |