THESAURUS
retard
arrest, backpedal, backwater, balk, block, bottle up, brake, bridle, check, clip the wings, confine, constrain, contain, control, cool, cool off, countercheck, curb, curtail, dam up, damp, dampen, decelerate, delay, detain, dompt, drag, draw rein, dunce, ease off, ease up, enjoin, fool, frustrate, govern, guard, hinder, hold, hold at bay, hold back, hold fast, hold in, hold in check, hold in leash, hold up, idiot, imbecile, impede, inhibit, intercept, interfere, interfere with, intermeddle, interrupt, intervene, jerk, keep, keep back, keep from, keep in, keep in check, keep under control, lag, lay under restraint, let down, let up, lose ground, lose momentum, lose speed, make late, meddle, moderate, moron, obstruct, oppose, prohibit, pull, pull in, reef, rein, rein in, relax, repress, resist, restrain, restrict, retrench, scotch, set back, slack off, slack up, slacken, slow, slow down, slow up, snub, stall, stay, stop, straiten, suppress, take in sail, throttle down, thwart, withhold
ROGET THESAURUS
retard
Hindrance
VB
hinder, impede, filibuster, impedite, embarrass, keep off, stave off, ward off, obviate, avert, antevert, turn aside, draw off, prevent, forefend, nip in the bud,
retard, slacken, check, let, counteract, countercheck, preclude, debar, foreclose, estop, inhibit, shackle, restrict, obstruct, stop, stay, bar, bolt, lock, block, block up, choke off, belay, barricade, block the way, bar the way, stop the way, forelay, dam up, put on the brake, scotch the wheel, lock the wheel, put a spoke in the wheel, put a stop to, traverse, contravene, interrupt, intercept, oppose, hedge in, hedge round, cut off, inerclude, interpose, interfere, intermeddle, cramp, hamper, clog, clog the wheels, cumber, encumber, incumber, handicap, choke, saddle with, load with, overload, lay, lumber, trammel, tie one's hands, put to inconvenience, incommode, discommode, discompose, hustle, corner, drive into a corner, run foul of, fall foul of, cross the path of, break in upon, thwart, frustrate, disconcert, balk, foil, faze, feaze, feeze, baffle, snub, override, circumvent, defeat, spike guns, spoil, mar, clip the wings of, cripple, put an extinguisher on, damp, dishearten, discountenance, throw cold water on, spoil sport, lay a wet blanket, throw a wet blanket on, cut the ground from under one, take the wind out of one's sails, undermine, be in the way of, stand in the way of, act as a drag, hang like a millstone round one's neck.
Lateness
VB
be late, tarry, wait, stay, bide, take time, dawdle, linger, loiter, bide one's time, take one's time, gain time, hang fire, stand over, lie over, put off, defer, delay, lay over, suspend, table, shift off, stave off, waive,
retard, remand, postpone, adjourn, procrastinate, dally, prolong, protract, spin out, draw out, lengthen out, stretch out, prorogue, keep back, tide over, push to the last, drive to the last, let the matter stand over, reserve, temporize, consult one's pillow, sleep on it, lose an opportunity, be kept waiting, dance attendance, kick one's heels, cool one's heels, faire antichambre, wait impatiently, await, sit up, sit up at night.
Slowness
VB
move slowly, creep, crawl, lag, slug, drawl, linger, loiter, saunter, plod, trudge, stump along, lumber, trail, drag, dawdle, grovel, worm one's way, steal along, job on, rub on, bundle on, toddle, waddle, wabble, slug, traipse, slouch, shuffle, halt, hobble, limp, caludicate, shamble, flag, falter, trotter, stagger, mince, step short, march in slow time, march in funeral procession, take one's time, hang fire,
retard, relax, slacken, check, moderate, rein in, curb, reef, strike sail, shorten sail, take in sail, put on the drag, apply the brake, clip the wings, reduce the speed, slacken speed, slacken one's pace, lose ground.