Remarkable (--b'l), a.
Etymology: [F. remarquable.]
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.
Syn. -- Observable; noticeable; extraordinary; unusual; rare; strange; wonderful; notable; eminent. -- Re*mark"a*ble*ness, n. -- Re*mark"a*bly, adv.
Shades of meaning
Fernald has no entry of its own for remarkable; he lists it under rare.
He lists it without comment; the entries above explain its neighbors.