OBSERVATIVE

\ɒbzˈɜːvətˌɪv], \ɒbzˈɜːvətˌɪv], \ɒ_b_z_ˈɜː_v_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.