1An adverb indicating that something has become completely changed or is in a totally different state — often paired with verbs like forget, change, or recover.
風邪はもうすっかり治りました。
My cold has completely healed now.
約束のことをすっかり忘れていた。
I had completely forgotten about the promise.
久しぶりに会った甥は、すっかり大人になっていた。
My nephew, whom I hadn't seen in a while, had completely grown into an adult.
部屋はすっかり片付いて、気持ちがいい。
The room is completely tidied up, and it feels great.