Οὔτοι ποθ᾽ οὑχθρός, οὐδ᾽ ὅταν θάνῃ, φίλος → One’s enemy does not become one’s friend when they die
P. and V. ἄχρηστος, ἄχρειος, ἀσύμφορος, ἀνόνητος, ἀνωφελής; see unprofitable.