agonizing vs bitter

agonizing

adj
  • Causing physical or mental agony. 

noun
  • The act of one who agonizes. 

bitter

adj
  • Harsh, piercing or stinging. 

  • Having an acrid taste (usually from a basic substance). 

  • Hateful or hostile. 

  • Cynical and resentful. 

verb
  • To make bitter. 

noun
  • A type of beer heavily flavored with hops. 

  • A liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic. 

  • A turn of a cable about the bitts. 

  • A hardware system whose architecture is based around units of the specified number of bits (binary digits). 

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