ungrateful
From LSJ
Χρὴ τῶν ἀγαθῶν διακναιομένων πενθεῖν ὅστις χρηστὸς ἀπ' ἀρχῆς νενόμισται → When a good man is hurt, all who would be called good must suffer with him
English > Greek (Woodhouse)
adj.
P. and V. ἀχάριστος (Eur., Hec. 254), V. δυσχάριστος (Aesch., Frag.).
Unremembering: P. and V. ἀμνήμων.
Unpleasing: P. and V. ἄχαρις (Plat. also Ar.), P. ἀχάριστος; see unpleasant.