'gyur med stobs ldan

the unchanging absolute; Def. 'khrul gzhi gzhan dbang dang 'khrul pa kun brtags gnyis kas stong ba'i chos nyid med dgag de bzhin nyid 'dus ma byas [RY]

the unchanging perfect establishment [IW]

the unchanging perfect establishment [among the kinds of perfection, uncompounded suchness, egoless and empty with non-affirming negation of the basis of confusion, both paratantra and confused parikalpita.] [IW]

Unchanging absolute. Same as emptiness or suchness. See also 'three natures.' [RY]