autonomous vs self-sustaining

autonomous

adj
  • Self-governing. Intelligent, sentient, self-aware, thinking, feeling, governing independently. 

  • Acting on one's own or independently; of a child, acting without being governed by parental or guardian rules. 

  • Used with no subject, indicating an unknown or unspecified agent; used in similar situations as the passive in English (the difference being that the theme in the English passive construction is the subject, while in the Celtic autonomous construction the theme is the object and there is no subject). 

self-sustaining

adj
  • Able to provide for one's own needs without help from others; self-sufficient. 

  • Able to sustain itself without the need for additional fuel. 

  • Opposing or rejecting exterior influence; independent. 

How often have the words autonomous and self-sustaining occurred in a corpus of books? (source: Google Ngram Viewer )