noun which may take the genitive case particle 'no', na-adjective
left unfinished; left as is; incomplete
Describes something that was started but not properly finished or put away; often carries a nuance of neglect or carelessness.
仕事をやりっ放しにして帰ってしまった。
He left his work unfinished and went home.
道
Please put away the tools instead of leaving them lying around.
中途半端 is a more general adjective for something half-done or vague, while やりっ放し specifically implies that an action was started and then abandoned without proper completion or cleanup.
Compound of the continuative form of やる (to do) + っ放し (from 放し, meaning 'leaving as is'). The っ is an emphatic gemination.