backwardness
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
dullness: P. and V. ἀμαθία, ἡ, P. βλακεία, ἡ, νώθεια, ἡ.
hesitation, hanging back: P. and V. ὄκνος, ὁ.