palatable vs piquant

palatable

adj
  • Pleasing to the taste, tasty. 

  • Tolerable, acceptable. 

piquant

adj
  • Favorably stimulating to the palate; pleasantly spicy; tangy. 

  • Stimulating to the senses; engaging; charming. 

  • Producing a burning sensation due to the presence of chilies or similar spices; spicy, hot. 

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