grandiose
impressive because of unnecessary largeness or grandeur; used to show disapproval
impressive
making a strong or vivid impression
magnificent
characterized by grandeur
glorious
having or deserving or conferring glory
brilliant
full of light; shining intensely
mind-boggling
intellectually or emotionally overwhelming
formidable
extremely impressive in strength or excellence
awe-inspiring
inspiring awe or admiration or wonder
awesome
inspiring awe or admiration or wonder
stunning
causing or capable of causing bewilderment or shock or insensibility
eye-popping
amazingly impressive; suggestive of the flashing of lightning
spectacular
sensational in appearance or thrilling in effect
dramatic
pertaining to or characteristic of drama
performance
the act of performing; of doing something successfully; using knowledge as distinguished from merely possessing it