Synonyms for far:
foreign, partway, distantly, remotely, far-flung, yonder, secluded, outermost, long-distance, off, atavistic, way out, mile, afar, outer, sequestered, considerably.
deep, cleft, lonely, extreme, apart, lonesome, isolated.
peripheral, long-range, within, unknown.
at a great distance (adjective)
distant, deep, far-flung, faraway, long, outlying, far-off, afar, out-of-the-way, removed, remote.
out of reach (adjective)
distant, beyond, removed, remote.
greatly, quite, extremely.
Sense 2 (noun)
extreme, greatly, considerably.
Sense 4 (noun)
apart, lonely, outermost, inaccessible, quite, isolated.
immoderate, furthermost, utmost, farthermost, faraway, distant, farther, uttermost, remote, further, furthest, off the beaten track, long, far-off, farthest, cold, right, outlying, removed, out-of-the-way.
far out (noun)
extreme, way out.
so far (noun)
far-off, far-flung, faraway, inaccessible, out-of-the-way, remote, further, distant, outlying, secluded, removed.