What does "remarkable" mean?

Remarkable: Worthy of being remarked or noticed; noticeable; conspicuous; hence, uncommon; extraordinary. 'T is remarkable, that they Talk most who have the least to say. Prior. There is nothing left remarlable Beneath the visiting moon. Shak. -- Re*mark"a*ble*ness, n. -- Re*mark"a*bly, adv.