'Radiantly' definitions:

Definition of 'radiantly'

(from WordNet)
adverb
In a radiant manner; "the bride smiled radiantly"

Definition of 'Radiantly'

From: GCIDE
  • Radiantly \Ra"di*ant*ly\ (r[=a]"d[i^]*ant*l[y^]), adv. In a radiant manner; with glittering splendor. [1913 Webster]