careful vs glancing

careful

adj
  • Conscientious and painstaking; meticulous. 

  • Taking care; attentive to potential danger, error or harm; cautious. 

glancing

adj
  • Making superficial, obtuse contact with something. 

noun
  • A sideways look; a glance. 

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