مُسْتَعْتَبٌ

is used in the sense of [the verbal noun of اِسْتَعْتَبَ, meaning] اِسْتِرْضَاءٌ: thus in the saying, وَلَا بَعْدَ المَوْتِ مِنْ مُسْتَعْتَبٍ [And after death there is no asking, petitioning, or soliciting, favour of God]: for after death is the abode of retribution, not that of works. (TA from a tradition)