clingy vs tenacious

clingy

adj
  • Having a tendency to cling. 

  • Pathetically attached to, or possessive of someone, usually a significant other. 

tenacious

adj
  • Clinging to an object or surface; adhesive. 

  • Unwilling to yield or give up; dogged. 

  • Having a good memory; retentive. 

  • Holding together; cohesive. 

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