truthful vs two-timing

truthful

adj

  • Honest, and always telling the truth. 

  • Accurately depicting what is real. 

two-timing

noun

  • The practice of being sexually or romantically unfaithful. 

adj

  • Sexually or romantically unfaithful. 

How often have the words truthful and two-timing occurred in a corpus of books? (source: Google Ngram Viewer )