DISPROPORTIONALNESS

\dˌɪspɹəpˈɔːʃənə͡lnəs], \dˌɪspɹəpˈɔːʃənə‍lnəs], \d_ˌɪ_s_p_ɹ_ə_p_ˈɔː_ʃ_ə_n_əl_n_ə_s]\
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2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.