Source : Webster's Revised Unabridged Dictionary (1913)

Illaudable \Il*laud"a*ble\, a. [L. illaudabilis. See {In-} not,
   and {Laudable}.]
   Not laudable; not praise-worthy; worthy of censure or
   disapprobation. --Milton. -- {Il*laud"a*bly}, adv. [Obs.]
   Broome.