Yes, it is an adverb. It means in a dull, unintelligent, or unexciting manner.
The adjective dull has the adverb form dully. It can mean in a dull way, or sluggishly, or in an obtuse manner.
Dimly
No, Dully was not an angel.
The population of Dully is 454.
Dully Sykes was born in 1981.
Howard Dully has 272 pages.
Howard Dully was created on -2007-09-17.
Howard Dully was born on 1948-11-30.
Padraig Dully was born on 1965-04-20.
the root word is dull
how wide is a 2006 f350 dully king ranch
Brightly