незыблемый
From LSJ
Νέµουσι δ' οἴκους καὶ τὰ ναυστολούµενα ἔσω δόµων σῴζουσιν, οὐδ' ἐρηµίᾳ γυναικὸς οἶκος εὐπινὴς οὐδ' ὄλβιος → They manage households, and save what is brought by sea within the home, and no house deprived of a woman can be tidy and prosperous
Russian > Greek
ἰσχυρός, ἄστρεπτος, ἀνέλεγκτος, ἀμετάστατος, ἀνέγκλιτος, ἀσφαλής, ἀστραβής, ἀσάλευτος, ἀμετάπτωτος, ἄσειστος, ἀστυφέλικτος, ἄρρηκτος, ἀκήρατος, ἀκμής, ἔμπεδος, δυσκίνητος, δυσκίνατος, δυσανάτρεπτος, πάγιος