sober vs unsharp

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. 

unsharp

adj
  • dulled or intentionally blunt. 

  • out of focus; blurry. 

verb
  • To sharpen (an image) by creating a blurred ("unsharp") negative as a mask, and then combining that mask with the original. 

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