grubby
n.dirty, messy, or unclean. You use this to describe things that have marks, stains, or a general lack of cleanliness.
n.dirty, soiled, or unclean. Often carries a connotation of being messy or lacking in personal hygiene.
“The children came home with grubby faces after playing in the mud.”
“He noticed that the grubby fingerprints on the window were still visible despite the rain.”
“The detective's report noted that the suspect's grubby appearance and lack of a fixed address made him an unlikely candidate for the high-profile corporate theft.”
“The T-shirt had disappeared, apart from the seams (sewn with polyester thread), the jumper was 80% gone, but the United shirt remained – grubby but indestructible.”
“It’s yet another grubby postapocalyptic survival tale, an overcrowded subgenre that hasn’t just reached maximum capacity on the big screen but on the small one too.”
From grub + -y.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.