ruminant vs thoughtful

ruminant

adj
  • Pondering; ruminative. 

  • Chewing cud. 

noun
  • An artiodactyl ungulate mammal which chews cud, such as a cow or deer. 

thoughtful

adj
  • Demonstrating thought or careful consideration. 

  • Demonstrating kindness or consideration for others. 

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