Miraculous \Mi*rac"u*lous\, a. [F. miraculeux. See {Miracle}.] 1. Of the nature of a miracle; performed by supernatural power; effected by the direct agency of almighty power, and not by natural causes. 2. Supernatural; wonderful. 3. Wonder-working. ``The miraculous harp.'' --Shak. -- {Mi*rac"u*lous*ly}, adv. -- {Mi*rac"u*lous*ness}, n.