UNDESCENDIBLE

\ˌʌndɪsˈɛndəbə͡l], \ˌʌndɪsˈɛndəbə‍l], \ˌʌ_n_d_ɪ_s_ˈɛ_n_d_ə_b_əl]\
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1908 - Chambers's Twentieth Century Dictionary of the English Language
By Thomas Davidson