The Oxford Thesaurus An A-Z Dictionary of Synonyms - chaotic adj.

1) formless, shapeless, incoherent, disordered, disorderly, disorganized, unorganized, unsystematic, unsystematized, unmethodical, haphazard, irregular, helter-skelter, confused, topsy-turvy, jumbled, higgledy-piggledy, Brit shambolic: The present solar system is thought to have condensed from a chaotic mass of nebulous matter. The rules may seem chaotic at first sight. 2) tumultuous, noisy, clamorous, uproarious, wild, riotous, frenzied, hectic, turbulent, unstuck: The press conference became chaotic when the president announced his resignation.