FURTHEST
farthermost, farthest, furthermost, furthest, utmost, uttermost
(adjective) (comparatives of âfarâ) most remote in space or time or order; âhad traveled to the farthest frontierâ; âdonât go beyond the farthermost (or furthermost) treeâ; âexplored the furthest reaches of spaceâ; âthe utmost tip of the peninsulaâ
farthest, furthest
(adverb) to the greatest distance in space or time (âfarthestâ is used more often than âfurthestâ in this physical sense); âsee who could jump the farthestâ; âchose the farthest seat from the doorâ; âhe swam the furthestâ
furthest, farthest
(adverb) to the greatest degree or extent or most advanced stage (âfurthestâ is used more often than âfarthestâ in this abstract sense); âwent the furthest of all the children in her educationâ; âfurthest removed from realityâ; âshe goes farthest in helping usâ
Source: WordNet® 3.1
Adjective
furthest
superlative form of far: most far
Most distant in time, space or degree.
Adverb
furthest
superlative form of far: most far
To, at or over the greatest distance in space, time or other extent.
To the greatest degree or extent.
Source: Wiktionary
Fur"thest, a.
Definition: superl. Most remote; most in advance; farthest. See Further, a.
Fur"thest, adv.
Definition: At the greatest distance; farthest.
Source: Webster’s Unabridged Dictionary 1913 Edition