chemically imbalanced vs spendthrift

chemically imbalanced

adj
  • Used other than figuratively or idiomatically: see chemically, imbalanced. 

  • Mentally ill. 

spendthrift

adj
  • Improvident, profligate, or wasteful. 

  • Extravagant or lavish. 

noun
  • Someone who spends money improvidently or wastefully. 

  • Anything that distributes its attributes profusely, without restraint. 

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