Leaving something as-is with 〜っぱなし
Grammar: Idiomatic & Strong Expressions
っぱなし is appended to a verb stem to show that something has been left in the state or condition from that action, with a negative connotation to leaving it as such.
ぱなし comes from the verb 放す.
Further Reading
- How to use 〜ぱなし (maggiesensei.com)
- Using 「っぱなし」 to leave something the way it is (guidetojapanese.org)
