Definition of: disorder

(dis·ôr′dər) noun
1. The state of being disarranged; disorderliness.
2. Hence, disregard or neglect of orderliness.
3. A disturbance of the peace; an infraction of law or discipline; minor uprising or tumult.
4. Derangement of the bodily or mental functions; disease.
5. Obs. Agitation.
—v.t.
1. To throw out of order; disarrange.
2. To disturb the natural functions of, as body or mind; unsettle; derange.
3. Obs. To agitate. [<OF desordre <L dis- away from, out of + ordo order] Synonyms (noun): anarchy, clutter, confusion, disturbance, irregularity. See DISEASE, ILLNESS, TUMULT. Antonyms: method, order, regularity, system.