'Indignantly' definitions:

Definition of 'indignantly'

(from WordNet)
adverb
In an indignant manner; "Miss Burney protested indignantly, her long thin nose turning pink with mortification at this irreverent piece of mimicry"

Definition of 'Indignantly'

From: GCIDE
  • Indignantly \In*dig"nant*ly\, adv. In an indignant manner. [1913 Webster]