flaky vs solemn

flaky

adj
  • Unreliable; working only on an intermittent basis; likely due to malfunction. 

  • Consisting of flakes or of small, loose masses; lying, or cleaving off, in flakes or layers; flakelike. 

  • Unreliable; likely to make plans with others but then abandon those plans. 

solemn

adj
  • Characterized by or performed with appropriate or great ceremony or formality. 

  • Of or pertaining to religious ceremonies and rites; (generally) religious in nature; sacred. 

  • Inspiring serious feelings or thoughts; sombrely impressive. 

  • Deeply serious and sombre; grave. 

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