relaxed vs solemn

relaxed

adj
  • Free from tension or anxiety; at ease; leisurely. 

  • Without physical tension; in a state of equilibrium. 

  • Made more lenient; less strict; lax. 

  • Of a muscle: soft, not tensed. 

solemn

adj
  • Inspiring serious feelings or thoughts; sombrely impressive. 

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

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

  • Deeply serious and sombre; grave. 

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