1. unfashionable and unattractive in dress or appearance

Examples

• She felt frumpy in her old sweater and worn jeans.
• The frumpy dress made her look older than her years.
• He traded his frumpy clothes for a sharp new suit.
• The makeover transformed her from frumpy to fabulous.
• Her frumpy appearance belied her sharp intelligence.
• The store specialized in stylish clothes for women who didn’t want to look frumpy.