κατατρεπτικῶς
From LSJ
Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
English (LSJ)
A v. καταστρεπτικῶς.
Greek (Liddell-Scott)
κατατρεπτικῶς: Ἐπίρρ., ἀναστρόφως, ἀνατρεπτικῶς, ὅσα εἰσὶν ὁρμῆς κινητικὰ ἀνετικῶς ἐφ’ ἕτερα καὶ μὴ κ. Στοβ. Ἐκλογ. 2. 150.