dead calm vs innocent

dead calm

adj
  • Completely still with no waves and no wind. 

noun
  • The condition of a perfectly flat sea with no waves and no wind. 

innocent

adj
  • Not contraband; not subject to forfeiture. 

  • Free from guilt, sin, or immorality. 

  • Not harmful; innocuous; harmless; benign. 

  • Without wrongful intent; accidental or in good faith. 

  • Naive; artless. 

  • Lawful; permitted. 

  • Bearing no legal responsibility for a wrongful act. 

  • Lacking (something), or knowledge of it. 

noun
  • One who is innocent, especially a young child. 

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