1. A system or method of categorizing or arranging items, concepts, or data in a confused, haphazard, or poorly structured manner, lacking clear order or logical arrangement
The library's disorganized classification system made it impossible for patrons to find books quickly.
O sistema de classificação desorganizado da biblioteca impossibilitou que os usuários encontrassem livros rapidamente.
2. In taxonomy or information science, a classification scheme that does not follow standardized principles or hierarchical structures
The researcher criticized the study's disorganized classification of behavioral patterns.
O pesquisador criticou a classificação desorganizada dos padrões comportamentais do estudo.