Wiktionary
crushingly
adv. 1 So as to defeat overwhelmingly. 2 So as to belittle; dishearteningly.
WordNet
crushingly
adv. in a crushing manner; "the team was crushingly defeated"
Usage examples of "crushingly".
She studied him against the brightening firelight, crushingly aware of how quickly she had come to desire him.
Fangs snapping a hairsbreadth from his throat, the sight of the stocky red body dripping with ground water as it rose after an impact that should have been crushingly final.
I was working up some research about the imminence of the sun going nova and the frantic efforts to suppress the bone-crunching sea monsters when Crog reached out and tapped me crushingly with a stonehard finger.