1. in a worn-out, threadbare, or poorly maintained manner
2. in an unfair, mean, or dishonorable way

Examples

• He was dressed shabbily in torn jeans and a faded shirt.
• The old house was shabbily maintained with peeling paint and broken shutters.
• She felt shabbily treated by her former employer.
• The restaurant was shabbily furnished with mismatched chairs and stained tablecloths.
• They were shabbily rewarded for their years of loyal service.
• His apartment was shabbily decorated with secondhand furniture.