κακότεχνος
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)
ον, (τέχνη)
A using evil practices, artful, δόλος Il.15.14: esp. in mal. part., lascivious, AP5. 128 (Autom.): Sup., ib.131 (Phld., v.l. κατατ-); of songs, Plu.2.706d. Adv. -νως with bad art, Ph.1.195.