'Imposingly' definitions:

Definition of 'imposingly'

From: WordNet
adverb
In an impressive manner; "the students progressed impressively fast" [syn: impressively, imposingly] [ant: unimpressively]

Definition of 'Imposingly'

From: GCIDE
  • Imposingly \Im*pos"ing*ly\, adv. In an imposing manner. [1913 Webster]