noun (common) (futsuumeishi)noun or participle which takes the aux. verb suru untiring labor (labour)

Godan verb with 'mu' endingintransitive verb word usually written using kana alone to slacken;to loosen;to relax;to droop (e.g. loose or flabby skin);to sag (ceiling)

Godan verb with 'mu' endingintransitive verb word usually written using kana alone to slack off (e.g. one's work, attention);to not put one's heart in