nonradical vs undisturbed

nonradical

adj

  • Not radical. 

noun

  • One who is not a radical. 

  • That which is not a radical (group of atoms that function as a unit in reactions). 

undisturbed

adj

  • not disturbed or agitated 

  • calm 

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