pitiful vs unweighty

pitiful

adj
  • Of an amount or number: very small. 

  • So appalling or sad that one feels or should feel sorry for it; eliciting pity. 

adv
  • In a pitiful manner; pitifully; piteously; pathetically. 

unweighty

adj
  • Not weighty. 

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