irreverence
From LSJ
Ποιητὴς, ὁπόταν ἐν τῷ τρίποδι τῆς Μούσης καθίζηται, τότε οὐκ ἔμφρων ἐστίν → Whenever a poet is seated on the Muses' tripod, he is not in his senses
subs.
Impiety: P. and V. ἀσέβεια, ἡ, V. δυσσέβεια, ἡ. Shamelessness: P. and V. ἀναίδεια, ἡ, ὕβρις, ἡ.