UNNATURALIZE

\ʌnnˈat͡ʃəɹə͡lˌa͡ɪz], \ʌnnˈat‍ʃəɹə‍lˌa‍ɪz], \ʌ_n_n_ˈa_tʃ_ə_ɹ_əl_ˌaɪ_z]\
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2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.