brackish vs slightly salty

brackish

adj
  • Distasteful; unpleasant; not appealing to the taste. 

  • Repulsive 

  • Salty or slightly salty, as a mixture of fresh and sea water, such as that found in estuaries. 

slightly salty

How often have the words brackish and slightly salty occurred in a corpus of books? (source: Google Ngram Viewer )