'Dully' definitions:

Definition of 'dully'

From: WordNet
adverb
Without liveliness; "she nodded her head dully"
adverb
Without luster or shine; "the light shone dully through the haze"; "unpolished buttons glinted dully"

Definition of 'Dully'

From: GCIDE
  • Dully \Dul"ly\, adv. In a dull manner; stupidly; slowly; sluggishly; without life or spirit. [1913 Webster]
  • Supinely calm and dully innocent. -- G. Lyttelton. [1913 Webster]