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Use "unstylish" in a sentence
"The man in my last long-term relationship dressed really understated, expensive and stylishly unstylish."
"I was incredibly healthy, quite happy with life, so the only women I could hook up with were the odd, the unstylish, the ones who almost never used makeup and went walking around bra-less in tight t-shirts, so it wasn't so bad."
"But all things pass and now I am a hopelessly unstylish chubby mess, back where I began."