Antonyms for go up

climb:

decline, decrease, fall, dismount, retreat, go down, lower, slump, descend, drop.

fail:

complete, begin, merit, succeed, earn, prosper, achieve, reach, continue, accomplish, capture, obtain, gain, procure, start, create, bear, deliver, win, commence.

get on:

unclothe, disagree, get off, disrobe.

motion:

fall.

mount:

Unfix, alight, subside, lessen.

rise:

compress, contract, demolish, destroy, raze, weaken, deflate, decelerate, cooperate, soften, calm, reduce, divide, shrink, cave in, give in, stop, comply, soothe, diminish, go along, regress, worsen, recede, depress.