astonishing (adj.)

• amazing
• appalling
• astounding
• breathtaking
• confounding
• conspicuous
• egregious
• electrifying
• exceptional
• extraordinary
• fabulous
• fantastic
• formidable
• incredible
• jarring
• jolting
• marked
• marvelous
• mind-boggling
• miraculous
• notable
• noteworthy
• noticeable
• outstanding
• overwhelming
• prodigious
• remarkable
• shocking
• signal
• spectacular
• staggering
• startling
• striking
• stunning
• stupendous
• superior
• surprising
• uncommon
• wonderful
• wondrous