βαρύθυμος
From LSJ
Τὰ μηδὲν ὠφελοῦντα μὴ πόνει μάτην → Ne tu labores frustra in iis, quae nil iuvant → Müh nicht umsonst mit dem, was dir nichts nützt, dich ab
English (LSJ)
ον,
A heavy in spirit: indignant, sullen, ὀργή E.Med.176, cf. Call.Cer.81, etc.; opp. ὀξύθυμος, Plu.2.13e: Sup., Phld.Ir.p.64 W. Adv. -μως, ἔχειν Alciphr. 2.3; rejected by Poll.3.99.