adverb
left as is; untouched; unrestrained
Describes something left in a state without further attention, often with a nuance of neglect or abandonment. Can also mean doing something without restraint. Used adverbially with verbs like する or なる.
部屋が散らかり放りっぱなしだ。
The room is left in a messy state.
彼は怒り放りっぱなしで手
He was so unrestrained in his anger that he was uncontrollable.