What are the antonyms for Frivolled?

• v.

  • fritter
  • hoard
  ,
  • hold
  ,
  • save
  ,
  • store
  .
  • squander
  • accumulate
  ,
  • collect
  ,
  • gather
  ,
  • set aside
  .

Well up on is typically used to describe someone who possesses a great amount of knowledge or expertise on a particular subject. However, there are several antonyms for this phrase...