Grotty (adjective)

1. Dirty, grimy, or unkempt.
2. Unpleasant, shabby, or dirty.

Origin:

British informal term, origin uncertain, may have been derived from the word "grotto" meaning a small cave or underground chamber, describing something as dirty and unpleasant.

Examples:

1. The grotty apartment was in need of a deep cleaning.
2. The grotty streets were filled with litter.
3. The grotty clothes had holes and stains.
4. The grotty pub was known for its unsanitary conditions.
5. The grotty hotel room was not suitable for staying in.