資料來源 : Webster's Revised Unabridged Dictionary (1913)

Pleonastic \Ple`o*nas"tic\, Pleonastical \Ple`o*nas"tic*al\, a.
   [Cf. F. pl['e]onastique.]
   Of or pertaining to pleonasm; of the nature of pleonasm;
   redundant.