prodigious

adjective

1. 1

   so great in size or force or extent as to elicit awe

   colossal crumbling ruins of an ancient temple

   has a colossal nerve

2. 2

   far beyond what is usual in magnitude or degree

   a night of exceeding darkness

   an exceptional memory

3. 3

   of momentous or ominous significance

   such a portentous...monster raised all my curiosity"- Herman Melville

   a prodigious vision