impaired vs tinned

impaired

adj
  • Rendered less effective. 

  • inebriated, drunk. 

noun
  • A criminal charge for driving a vehicle while impaired. 

tinned

adj
  • Previously prepared; not fresh or new 

  • Packed in a tin can; canned. 

  • Coated, or plated with tin. 

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