"Unruinate" is a non-existent word that does not have an official spelling. However, if one were to create a word with this combination of letters, it may be pronounced as /ʌnruːɪneɪt/. This would mean that the "un-" prefix would be pronounced with a schwa (ʌ) sound, followed by the long "oo" vowel sound (uː). The "-ate" suffix would also be pronounced with a long "ai" sound (eɪt). However, without a legitimate definition, it is unlikely that this word will be commonly used or recognized.