madcap vs solemn

madcap

noun
  • An impulsive, hasty, capricious person. 

adj
  • Hasty, impulsive, or reckless; capricious. 

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 madcap and solemn occurred in a corpus of books? (source: Google Ngram Viewer )