Incapable of being tasted; tasteless; unsavoury.
Of questionable taste or morality; decadent.
Unconventional and slightly disreputable in an attractive manner; raffish, rakish.
Not reputable or decent.
To make (an alcoholic beverage, e.g. absinthe or ouzo) cloudy by mixing it with water, due to the presence of anethole. This is known as the ouzo effect.