incurving vs twisted

incurving

adj
  • curving inwards 

twisted

adj
  • Contorted. 

  • Wound spirally. 

  • Mentally disturbed or unsound. 

  • Under the influence of multiple intoxicants, usually alcohol and marijuana. 

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