Thesaurus.com
Dictionary.com
Definitions

disorganization

[dis-awr-guh-nuh-zey-shuhn] / dɪsˌɔr gə nəˈzeɪ ʃən /
NOUN
unordered situation or thing
Synonyms
STRONGEST
foul-up mix up
STRONG
anarchy chaos confusion derangement disarray disjointedness disorder disruption dissolution disunion incoherence unconnectedness
WEAK
rat's nest screwup unholy mess
Antonyms
STRONG
arrangement calm harmony method order orderliness organization system
WEAK
coherence neatness plan tidiness

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.