1. By bad luck
   - unfortunately, unluckily, alas

See also: regrettable

• dummy whist
• dump
• dump routine
• dump truck
• dumpcart
• dumper
• dumper truck
• dumpiness
• dumping
• dumpling
• dumplings
• dumps
• dumpsite
• Dumpster
• dumpy
• Dumpy level
• Dumuzi
• dun
• dun-colored
• dun-coloured
• Duncan
• Duncan Grant
• Duncan James Corrow Grant
• dunce
• dunce cap