お
 
ろ
 
そ
 
か

adjectival noun or quasi-adjective

Usually written with kana alone.
  1. negligent, neglectful, careless, remiss.

Variations

Pronunciation Kanji Kana Is Common
 
お
 
ろ
 
そ
 
か
おろそか ✔
おろそ
疎
 
か
疎か おろそか ✔