Neglectful
Part of speech: adjective
Definition: Tending to neglect; failing to take care of matters which require attention.
Derelict
Part of speech: adjective
Definition: Abandoned, forsaken; (of ship) abandoned at sea; dilapidated, neglected.Negligent in performing a duty.
Part of speech: noun
Definition: Abandoned property; a ship abandoned at sea.An abandoned or forsaken person; an outcast.A negligent person.
Example sentence: In 1968 the Arts Council managed to get a grant from the treasury to buy up a lot of derelict touring theatres and put them back in the hands of the local authorities.