- s (comparatives of `far') most remote in space or time or order
don't go beyond the farthermost (or furthermost) tree
- When the light we see today left the farthermost quasars, the earth and the solar system had not yet been born.
- Under the eaves of Central Asia's towering Hindu Kush Mountains lie the farthermost outposts of the British Raj's power in India, in the Northwest Frontier Province.
- Though they resemble ordinary stars when viewed through optical telescopes, they are billions of lightyears away, the farthermost objects in the observable universe.