sober vs solemn

sober

adj
  • Subdued; solemn; grave. 

  • Poor; feeble. 

  • Not given to excessive drinking of alcohol. 

  • Moderate; realistic; serious; not playful; not passionate; cool; self-controlled. 

  • Not under the influence of any recreational drug. 

  • Dull; not bright or colorful. 

  • Not drunk; not intoxicated. 

  • Given to excessive drinking of alcohol, but having made a conscious decision to abstain from it. 

verb
  • To make or become sober. 

  • To moderate one's feelings. 

  • To overcome or lose a state of intoxication. 

solemn

adj
  • Deeply serious and sombre; grave. 

  • 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. 

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