communicative vs hush-hush

communicative

adj

  • Eager to communicate; talkative. 

hush-hush

adj

  • Secret, not spoken of (or spoken of only in hushed whispers between insiders). 

noun

  • secrecy; covert operation 

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