mtha' grol

free[dom]/ liberation from extremes [IW]

free[dom]/ liberation from extremes [grol lugs chen po bzhi'i nang gses, rang byung gi rig pa de nyid dus gsum dang shes bya gang du'ang mi gnas pas mtha' grol zhes bya'o, [IW]

freedom from extremes, liberation from [the four] extremes, free from extremes; liberated from all limitations; freedom from limit(ation)s [RY]

freedom from/ free of limit(ation)s/ (limiting) extremes [RB]

unbounded, liberated from extremes, free from extremes, liberated from all limitations [JV]