온통 + noun/state: 온통 하얗다, 머릿속이 온통 ~ 생각
entirely, all over, completely
Example
아침에 일어나니 세상이 온통 하얬어요.
When I woke up in the morning, the whole world was white.
Word parts
Probably related to 온 'whole, entire', as in 온 세상.
Good to know
머릿속이 온통 ~ 생각뿐이에요 means 'I can think of nothing but ~'.
Related words