ふしん

Frequency rank: 37,772. – 38,256.
    noun (common) (futsuumeishi); noun or participle which takes the aux. verb suru; intransitive verb
  1. taking great pains (to do); making every effort; having a lot of trouble (doing); racking one's brains
Forms
  • ふしんFrequency rank: 37,772. – 38,256.
  • ふしん
Wiktionary definitions (experimental)
  1. .