continual vs rhythmic

continual

adj
  • Recurring in steady, rapid succession. 

  • Seemingly continuous; appearing to have no end or interruption. 

  • Forming a continuous series. 

rhythmic

adj
  • With regular, repetitive motion or sound. 

  • Characterized by rhythm. 

  • Of or relating to rhythm. 

  • Written in verse, especially rhyming verse. 

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