"Unsoberer" is a peculiar compound word meaning someone who is less sober than before. The IPA phonetic transcription for this word is [ʌnˈsoʊ.bər.ɚ], where the stressed syllable is the second one. The prefix "un-" means "not", while "sober" means "in control of one's faculties". When you add the suffix "-er", it forms a comparative adjective, meaning more of the quality described. However, the word "unsoberer" is not commonly used and may be awkward in some contexts.