austere vs slimline

austere

adj
  • Lacking decoration; trivial; not extravagant or gaudy 

  • Grim or severe in manner or appearance 

slimline

adj
  • Stripped of unnecessary features. 

  • Gracefully slim or slender. 

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