UNPROFESSIONAL

\ʌnpɹəfˈɛʃənə͡l], \ʌnpɹəfˈɛʃənə‍l], \ʌ_n_p_ɹ_ə_f_ˈɛ_ʃ_ə_n_əl]\
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1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.