BRACKISH
brackish, briny
(adjective) slightly salty (especially from containing a mixture of seawater and fresh water); “a brackish lagoon”; “the briny deep”
brackish
(adjective) distasteful and unpleasant; spoiled by mixture; “a thin brackish gruel”
Source: WordNet® 3.1
Etymology
Adjective
brackish (comparative more brackish, superlative most brackish)
(of water) Salty or slightly salty, as a mixture of fresh and sea water, such as that found in estuaries.
Distasteful; unpleasant; not appealing to the taste.
Repulsive
Source: Wiktionary
Brack"ish, a. Etym: [See Brack salt water.]
Definition: Saltish, or salt in a moderate degree, as water in saline soil.
Springs in deserts found seem sweet, all brackish though they be.
Byron.
Source: Webster’s Unabridged Dictionary 1913 Edition