extraordinary
important
significant
appalling
arresting
astonishing
astounding
beguiling
bewildering
celebrated
conspicuous
curious
different
distinguished
egregious
eminent
enigmatic
esteemed
estimable
exceptional
fabulous
fantastic
fascinating
formidable
impressive
incomprehensible
inconceivable
incredible
indescribable
ineffable
legendary
marked
marvelous
memorable
miraculous
momentous
mythical
noble
notable
noteworthy
noticeable
observable
odd
of mark
outlandish
outstanding
admirable
wonderful
unremarkable