caustic vs saccharine

caustic

adj
  • Sharp, bitter, cutting, biting, and sarcastic in a scathing way. 

  • Capable of burning, corroding or destroying organic tissue. 

noun
  • The envelope of reflected or refracted rays for a given curve. 

  • Caustic soda. 

  • The envelope of reflected or refracted rays of light for a given surface or object. 

  • Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic. 

saccharine

adj
  • Excessively sweet in action or disposition, especially if romantic or sentimental to the point of ridiculousness; sickly sweet, syrupy. 

  • Resembling granulated sugar; saccharoid. 

  • Of or relating to saccharin (“a white, crystalline powder, C₇H₅NO₃S, used as an artificial sweetener in food products”). 

noun
  • Sentimentalism. 

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