ボサボサ

noun which may take the genitive case particle 'no', na-adjective, adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

ruffled; unkempt; tousled

Describes hair, fur, or bristles that are messy, sticking out, or not combed. Often used with 髪 (hair).

• 朝あさ起おきたら髪かみがボサボサだった。

  When I woke up, my hair was all ruffled.

• ブラシの毛け先さきがボサボサになってきた。

  The bristles of the brush have become frayed.

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

idling; dawdling; dilly-dallying

Describes spending time lazily or without purpose. Often used with する or as an adverb.

• 休やすみの日ひは家いえでボサボサしている。

  On my days off, I just laze around at home.

• ボサボサしないで早はやく準じゅん備びしなさい。

  Stop dawdling and get ready quickly.