The least bordinal is defined as the supremum of which is defined in Absolute Qalandar(AQ). The term was coined by Sbiis. To clarify, The Least Bordinal can be defined in more standard terminology as the supremum of Ord the proper class of all ordinals. The Least Bordinal is synonymous with Cantor's concept of the Absolutely Infinite inconsistent set of all ordinals, so it's "size" may be assumed to be Absolute Infinity. It marks the endpoint of ordinals and the beginnings of post-ordinals and post-Absolute Infinities.
Currently the properties of numbers beyond The Least Bordinal are unknown and under debate.
Least bordinal may be equal to Ruo Paixu Gendial.