непримиримый
From LSJ
ἄλογον δὴ τὸ μήτε μάχης ἄρξασθαι μήτε τοὺς φίλους φυλάξαι, ἐὰν ὑπό γε τῶν βαρβάρων ἀδικῆσθε → It is irrational neither to begin battle nor to guard the friends, if you are ever wronged by the foreigners
Russian > Greek
ἄμικτος, ἀσυνάλλακτος, ἀκήρυκτος, ἀδιάλλακτος, ἀκατάλλακτος, ἄσπειστος, ἀσύμβατος, ἀξύμβατος, ἀσυνάρμοστος, δυσμείλικτος, δυσκατάλλακτος, δυσδιάλυτος