nude vs undressed

nude

adj
  • Without clothing or other covering of the skin; without clothing on the genitals or female nipples. 

  • Of a color (such as beige or tan) that evokes bare flesh. 

noun
  • A color that resembles or evokes bare flesh; a paint, dye, etc. of such color. 

  • A painting, sculpture, photograph or other artwork or mass-media-reproduced image depicting one or more human figure(s) in a state of near or total undress. 

  • The state of total nudity. 

undressed

adj
  • Without dressing. 

  • Having partially or completely removed one's clothes. 

  • Whose surface has not been dressed (prepared). 

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