2 adjectives to describe brackish

There is little water in the Ceriso at the best of times, and that little brackish and smelling vilely, but by a lone juniper where the rim of the Ceriso breaks away to the lower country, there is a perpetual rill of fresh sweet drink in the midst of lush grass and watercress.

CHAPTER X The village of Hooker's Bend amuses itself mainly with questionable jests that range all the way from the slightly brackish to the hopelessly obscene.

2 adjectives to describe  brackish