Synonyms for Disorganize:

n.

break down, complicate, demobilize, destroy, disarray, disband, disperse, disrupt, embroil, litter, overthrow, overturn, shuffle, stampede, unsettle, break up, mess up, deprive of organization, throw into confusion, throw into disorder, turn topsy-turvy. order. disorganize (noun)
disorganise.

v.

derange (verb)
agitate, blur, botch, capsize, churn, clutter, confound, confuse, convulse, derange, disarrange, discompose, dishevel, dislocate, disorder, displace, disturb, ferment, hash, jumble, meddle, mess, mislay, misplace, muddle, muss, perturb, ripple, roil, roughen, ruffle, rummage, rumple, scatter, scramble, swirl, tamper, toss, tousle, trouble, tumble, upset, whip, whisk, mix up.
disorder (verb)
clutter, confuse, disarrange, disorder, scatter.
disrupt arrangement; make shambles of (verb)
break down, clutter, complicate, confound, confuse, demobilize, derange, destroy, disarrange, disarray, disband, discompose, dishevel, dislocate, disorder, disperse, disturb, embroil, jumble, litter, mislay, misplace, muddle, perturb, scatter, scramble, shuffle, toss, unsettle, upset, break up, mess up, turn topsy-turvy.
scatter (verb)
disband.

Other synonyms:

unsettle. disrupt. confuse
mix up.
disintegrate
break down.
Other relevant words:
break down, complicate, demobilize, destroy, disarray, disband, disorganise, disperse, disrupt, embroil, litter, overthrow, overturn, shuffle, stampede, unsettle, throw into confusion, throw into disorder, turn topsy-turvy.

Usage examples for disorganize

  1. In fact, the wedding festivities in honor of a union which restored the house of Winkler to its former state of security threatened to completely disorganize the delighted community. – Jane Lends A Hand by Shirley Watkins
  2. Now he works to preserve as much as possible of the curse of slavery; he does it on the plea of Union and conservatism; but in truth he wishes to disorganize the pure Republican party, which he hates since the Chicago Convention and since the days of the formation of the Cabinet. – Diary from March 4, 1861, to November 12, 1862 by Adam Gurowski
  3. It seems to have a powerful affinity for important nerve centers of respiration and muscular co- ordination, as well as possessing a tendency to disorganize the blood. – The Film Mystery by Arthur B. Reeve