Adjective has 1 sense

• farthermost(s = adj.all) farthest, furthermost, furthest, utmost, uttermost - (comparatives of `far') most remote in space or time or order; "don't go beyond the farthermost (or furthermost) tree"; "explored the furthest reaches of space"; "had traveled to the farthest frontier"; "the utmost tip of the peninsula"