milk-and-water vs unpalatable

milk-and-water

noun

  • Something insipid or mawkish. 

adj

  • Insipid, wishy-washy, weak. 

unpalatable

noun

  • Anything distasteful. 

adj

  • Unpleasant or disagreeable. 

  • Unpleasant to the taste. 

How often have the words milk-and-water and unpalatable occurred in a corpus of books? (source: Google Ngram Viewer )