What's the noun for derelict? Here's the word you're looking for.
derelict
Property abandoned by its former owner, especially a ship abandoned at sea.
(dated) An abandoned or forsaken person; an outcast.
A homeless and/or jobless person; a person who is (perceived as) negligent in their personal affairs and hygiene. (This sense is a modern development of the preceding sense.)
“But none of these institutions paid a price in the marketplace for their derelictions of duty.”
“Nevertheless, in my judgment the seriousness of his derelictions of duty is such that it can only properly be marked by a significant period of disqualification.”
“This also applies to slightly negligent derelictions of duty by the seller's vicarious agents.”