breathtaking vs swanlike

breathtaking

adj
  • stunningly beautiful; amazing 

  • Very surprising or shocking; to such a degree as to cause astonishment. 

swanlike

adj
  • Beautiful like a swan 

  • Similar to a swan or a characteristic of it, especially in elegance or grace 

adv
  • In a swanlike way 

  • Beautifully like a swan 

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