UNRECOGNISABLE

\ˌʌnɹˈɛkəɡnˌa͡ɪzəbə͡l], \ˌʌnɹˈɛkəɡnˌa‍ɪzəbə‍l], \ˌʌ_n_ɹ_ˈɛ_k_ə_ɡ_n_ˌaɪ_z_ə_b_əl]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd