a little vs unoften

a little

adv

  • Slightly. 

  • A lot. 

  • Very. 

  • A lot of. 

  • To a small extent or degree. 

det

  • A small amount of. 

unoften

adv

  • seldom, rarely 

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