
ὕβρις was the goddess of insolence, violence, wantonness, reckless pride, arrogance and outrageous behaviour in general.
The Romans the personification as Petulantia.Bacchylides, Fragment 15 (from the Oxyrhynchus Papyrus 2363) (trans. Campbell, Greek Lyric, IV):
It is open to all men to reach unswerving Dike, the attendant of holy Eunomia and wise Themis; blessed are they whose sons choose her to share their home; but that other, shameless Hybris, luxuriating in shifty tricks and lawless follies, who swiftly gives a man another’s wealth and power only to bring him into deep ruin–it was she who destroyed those arrogant sons of Ge, the Gigantes.
*soft gasp*