ἀντεναντίωσις
From LSJ
Ὁ κόσμος σκηνή, ὁ βίος πάροδος· ἦλθες, εἶδες, ἀπῆλθες → The world is a stage, life is your entrance: you came, you saw, you departed (Democritus fr. 115 D-K)
English (LSJ)
εως, ἡ, Rhet.,
A positive statement made in a negative form, as οὐκ ἐλάχιστα for μέγιστα, Alex.Fig.2.23, Zonae.Fig. 22.
German (Pape)
[Seite 246] ἡ, die Redefigur, welche durch Verneinung eines Begriffs den entgegengesetzten bezeichnet, Rhett.