малодушный
From LSJ
οὐ δικαίως θάνατον ἔχθουσιν βροτοί, ὅσπερ μέγιστον ῥῦμα τῶν πολλῶν κακῶν → unjustly men hate death, which is the greatest defence against their many ills | men are not right in hating death, which is the greatest succour from our many ills
Russian > Greek
ἀκήριος, ἄψυχος, ἄσπλαγχνος, μικρόψυχος, ὀλιγόψυχος, μαλακός, ταπεινόφρων, βαρύψυχος, ἄθυμος, πονηρός, κακόσπλαγχνος