disheveled \dih-SHEV-uhld\ (adjective) - In loose disorder; disarranged; unkempt; as, "disheveled hair."
""Sometimes Bethany came to school disheveled, or wearing dirty clothes... it raised a red flag for us." -- Jodi Picoult, 'Vanishing Acts'
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Disheveled is from Old French descheveler, "to disarrange the hair," from des-, "apart" (from Latin dis-) + chevel, "hair," from Latin capillus.