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Of questionable morality or repute: "The rebuilt [Moscow hotel] is home to the flashy, louche Western disco Manhattan Express" (Liesl Schillinger).
[French, from Old French losche, squint-eyed, feminine of lois, from Latin luscus, blind in one eye.]
1. shifty or disreputable
[C19: from French, literally: squinting]
[1810–20; < French: literally, cross-eyed; Old French losche, feminine of lois < Latin luscus blind in one eye]