austere vs minimalist

austere

adj
  • Lacking decoration; trivial; not extravagant or gaudy 

  • Grim or severe in manner or appearance 

minimalist

adj
  • Believing in or seeking a minimal state; seeking to minimize or reduce to a minimum. 

noun
  • One who believes in or seeks a minimal state; one who seeks to minimize or reduce to a minimum. 

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