\Stu*pen"dous\, a. [L. stupendus astonishing, p.
future pass. of stupere to be astonished at. Cf. {Stupid}.]
Astonishing; wonderful; amazing; especially, astonishing in
magnitude or elevation; as, a stupendous pile. ``A stupendous
sum.'' --Macaulay.
      All are but parts of one stupendous whole. --Pope.
-- {Stu*pen"dous*ly}, adv. -- {Stu*pen"dous*ness}, n.