Pronunciation: (mon'strus), [key]
1. frightful or hideous, esp. in appearance; extremely ugly.
2. shocking or revolting; outrageous: monstrous cruelty.
3. extraordinarily great; huge; immense: a monstrous building.
4. deviating grotesquely from the natural or normal form or type.
5. having the nature or appearance of a fabulous monster.
extremely; exceedingly; very.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.