To lose could have the synonym "defeated." Or someone who lost out might be "disappointed" or "dejected."
A synonym for bully that starts with "d" is "domineer."
dudes
delicious is a synonym for tasty
"Put On" Synonym: Dress Synonym: Don (to put on an item of clothing)
development
declared
not good
Don. To don clothing is to wear them.
Davenport is a synonym for couch. It begins with the letter D.
The synonym is disgusting. Or rather, disgusting is a synonym. Also distasteful, disturbing, or detestable.
That word would be disaster.
Bliss.