IMPROBATIVE

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