carcinogenic vs malignant

carcinogenic

adj
  • Causing or tending to cause cancer. 

noun
  • Synonym of carcinogen 

malignant

adj
  • Harmful, malevolent, injurious. 

  • Tending to produce death; threatening a fatal issue. 

noun
  • A deviant; a person who is hostile or destructive to society. 

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