obtrusive vs unpretentious

obtrusive

adj
  • Sticking out; protruding. 

  • Noticeable; prominent, especially in a displeasing way. 

  • Pushy. 

unpretentious

adj
  • Simple, humble, not pretentious, plain. 

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