seedy
adj.adj. looking dirty, old, and run-down. You use this to describe a place that feels unsafe or a person who looks like they have no money.
adj. characterised by a lack of cleanliness, order, or respectability; often used to describe a person's appearance or a building's condition.
The old hotel looked seedy and run-down.
He wore a seedy coat that smelled of smoke and old coffee, making him look like a man with no home.
The once-grand theater had become a seedy venue for underground performances, its faded velvet curtains and peeling plaster hinting at a long decline in fortunes.
From Middle English sedy, equivalent to seed + -y. The senses with negative connotation, first attested by 1725 in slang, originally especially “poor, out of money”, probably arose from the metaphor of a flower that has gone to seed, and is no longer considered beautiful. From there the word came to be used to describe unwell or past-their-prime people, and parallelly run-down places and by extension low-income or crime-affected urban areas. Compare the figurative expressions go to seed (by 1817), etc., originally in reference to plants, “cease flowering as seeds develop”.