modified
arresting, conspicuous, noticeable, attractive, impressive, surprising, astonishing, electrifying, stunning, staggering, confounding, unusual, unwonted, singular, remarkable, extraordinary, outstanding, prominent, dazzling, startling, fascinating, noteworthy, distinguished, memorable, marked; see also beautiful 1, 2, unusual 1, 2.
Antonyms ugly*, common, insignificant. See syn. study at noticeable.noticeable.