flocculent vs impressible

flocculent

adj
  • Covered in a woolly substance; downy. 

  • Flocculated, resembling bits of wool; woolly. 

  • Flaky. 

impressible

adj
  • Capable of being impressed; susceptible of receiving impression. 

  • Capable of creating an impression. 

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