recent vs sometime

recent

adj
  • Having happened a short while ago. 

  • Up-to-date; not old-fashioned or dated. 

  • Particularly in geology, palaeontology, and astronomy: having occurred a relatively short time ago, but still potentially thousands or even millions of years ago. 

  • Having done something a short while ago that distinguishes them as what they are called. 

sometime

adj
  • Former, erstwhile; at some previous time. 

  • Occasional. 

adv
  • At an indefinite but stated time in the past or future. 

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