louche
\LOOSH\ , adjective:
1.
Of questionable taste or morality; disreputable or indecent; dubious; shady.

Quotes:
You’ve got to keep yourself free of any suggestion of louche behavior.
– Anthony West,
A man in a bar, utterly average, though there is something louche about him, something sly.
– Andrew Holleran, In September, the Light Changes
Danny would be sipping a mai tai or a whiskey sour in some louche West End club.
– Will Self, Tough, Tough Toys for Tough, Tough Boys
Origin:
Louche is from French louche, “shady, suspicious,” from Old French losche, “squint-eyed,” from Latin luscus, “one-eyed.”  Word Of the Day