ἀναίσθητον

From LSJ

τίς δ' οἶδεν εἰ τὸ ζῆν μέν ἐστι κατθανεῖν, τὸ κατθανεῖν δὲ ζῆν κάτω νομίζεται → who knows if life is death, and if in the underworld death is considered life

Source

Russian (Dvoretsky)

ἀναίσθητον: τό Thuc. = ἀναισθησία 2.