Dictionary Definition:
Vimaṭṭha (adj.) [vi+maṭṭha] smoothed, soft, smooth, polished J v.96 (˚ābharana), (C. expls as "visāla"), 204, 400 (of ornaments). -- ubhato -- bhāga˚ polished or smooth on both sides M i. 385; A v.61=M ii.13 (has ˚maddha).