'Startlingly' definitions:

Definition of 'startlingly'

From: WordNet
adverb
In a startling manner; "a startlingly modern voice"

Definition of 'Startlingly'

From: GCIDE
  • Startlingly \Star"tling*ly\ (-tl[i^]ng*l[y^]), adv. In a startling manner. [1913 Webster]