ironic vs two-edged

ironic

adj
  • Characterized by or constituting (any kind of) irony. 

  • Done in an insincere and mocking manner; satirical. 

  • Acting in a unserious and teasing manner. 

  • Odd or coincidental; strange. 

two-edged

adj
  • having two, often contrasting, meanings or interpretations 

  • having two cutting edges 

How often have the words ironic and two-edged occurred in a corpus of books? (source: Google Ngram Viewer )