irritant vs rough-and-tumble

irritant

noun
  • A source of irritation. 

  • Any medication designed to cause irritation 

adj
  • Causing irritation or inflammation. 

  • Rendering null and void; conditionally invalidating. 

rough-and-tumble

noun
  • An environment of rough activity 

  • Rough activity; fighting or brawling; a fight. 

  • A person who characteristically engages in such activity 

adj
  • active, vigorous and rough, with the possibility of harm 

  • highly competitive 

verb
  • Engage in rough-and-tumble activity 

How often have the words irritant and rough-and-tumble occurred in a corpus of books? (source: Google Ngram Viewer )