for real vs truth-telling

for real

adj

  • Genuine, true; serious, earnest. 

adv

  • Genuinely, truly. 

truth-telling

adj

  • Telling the truth; honest, frank. 

noun

  • The act of telling the truth. 

How often have the words for real and truth-telling occurred in a corpus of books? (source: Google Ngram Viewer )