Louche.
Adjective: not reputable or decent; dubious, shady.
[Origin: French, literally, cross-eyed, squint-eyed, Old French losche, from Latin luscus blind in one eye.]
“And so it is with old HPL: the very model of an 18th century hipster, born decades too late to be one of the original louche laudanum-addicted romantic poets, and utterly unafraid to bore us by droning on and on about the essential crapness of culture since Edgar Allen Poe, the degeneracy of the modern age, &c. &c. &c.”
– Equoid: A Laundry Novella, Charles Stross.