antiphrastic

from The Collaborative International Dictionary of English v.0.48

Antiphrastic \An`ti*phras"tic\, Antiphrastical
\An`ti*phras"tic*al\, a. [Gr. ?.]
   Pertaining to antiphrasis. -- {An`ti*phras"tic*al*ly}, adv.
   [1913 Webster]