organizada
The opposite of "organizada" (Spanish for "organized") is "desorganizada," which means "disorganized." While "organizada" refers to a state of being orderly and structured, "desorganizada" indicates a lack of order and chaos.
Un desastre / lío / enredo / desorden / enredijo / maraña.Disordenado (¡A fusilar al que enseñe esto!)