1. in a way that is not beautiful; without beauty or attractiveness
Usage: rare

Examples

• The building was unbeautifully designed with harsh angles and dull colors.
• She sang unbeautifully, her voice cracking on the high notes.
• The garden had grown unbeautifully wild after years of neglect.
• The room was unbeautifully furnished with mismatched furniture.
• The painting was unbeautifully executed with muddy colors and poor composition.