THESAURUS
unseat
break, buck off, bust, cashier, deconsecrate, defrock, depose, deracinate, dethrone, disarticulate, disbar, discrown, disenthrone, disjoint, dislocate, dislodge, dismiss, dismount, displace, drum out, excommunicate, expel, give the gate, kick upstairs, liquidate, luxate, oust, overthrow, pension, pension off, pitch, purge, read out of, remove, remove from office, retire, root out, root up, strip of office, strip of rank, superannuate, suspend, throw off, unchurch, unfrock, unhinge, unhorse, unjoint, unplace, unsaddle, unthrone, uproot
ROGET THESAURUS
unseat
Abrogation
VB
abrogate, annul, cancel, destroy, abolish, revoke, repeal, rescind, reverse, retract, recall, abolitionize, overrule, override, set aside, disannul, dissolve, quash, nullify, declare null and void, disestablish, disendow, deconsecrate, disclaim, ignore, repudiate, recant, divest oneself, break off, countermand, counter order, do away with, sweep away, brush away, throw overboard, throw to the dogs, scatter to the winds, cast behind, dismiss, discard, cast off, turn off, cast out, cast adrift, cast out of doors, cast aside, cast away, send off, send away, send packing, send about one's business, discharge, get rid of, bounce, fire, fire out, sack, cashier, break, oust,
unseat, unsaddle, unthrone, dethrone, disenthrone, depose, uncrown, unfrock, strike off the roll, disbar, disbench, be abrogated, receive its quietus, walk the plank.