ὀξύμωρος
ὀξῠ/-μωρος, ον,
A). pointedly foolish : τὸ ὀξύμωρον a witty saying, the more pointed from being paradoxical or seemingly absurd, such as insaniens sapientia, strenua inertia, splendide mendax, Serv.ad Verg. A. 7.295 , etc.