The Collaborative International Dictionary
Devouringly
Devouringly \De*vour"ing*ly\, adv. In a devouring manner.
Wiktionary
devouringly
adv. In a devouring manner; rapaciously, consumingly.
Usage examples of "devouringly".
Those huge, pansy-brown eyes followed the movements of his hand devouringly, without once straying to either his body or his face.
As a result of what you have told me, I realize that Earth is the most important and the most devouringly interesting object in the Universe.