1.
[syn: farthermost, farthest, furthermost, furthest, utmost, uttermost]
The Collaborative International Dictionary of English v.0.48:
Furthermost \Fur"ther*most"\, a.
Most remote; furthest.
[1913 Webster]
WordNet (r) 3.0 (2006):
furthermost
adj 1: (comparatives of `far') most remote in space or time or
order; "had traveled to the farthest frontier"; "don't go
beyond the farthermost (or furthermost) tree"; "explored
the furthest reaches of space"; "the utmost tip of the
peninsula" [syn: farthermost, farthest,
furthermost, furthest, utmost, uttermost]