Webster’s Revised Unabridged Dictionary · 1913 Farthest Far′thest (fär′t͟hĕst), a. Superl. of far. [See Farther and cf. Furthest] Most distant or remote; as, the farthest degree. See Furthest. Far′thest adv. At or to the greatest distance. See Furthest. ‹ Farthermost Farthing ›