Wiktionary
imbecilically
adv. In an imbecilic way.
Usage examples of "imbecilically".
Edge said diffidently, imbecilically, but unable to do otherwise, when he walked over to them at intermission.
Immediately, a new couple replaced the LaKarns, gushing imbecilically about "space racers" and what it felt to be "out there among the stars.
The dozen or so people who were connected by their heads to this spidery unpleasantness had, whether sitting, standing or lying down, ceased all motion, but now they all turned imbecilically calm eyes toward the circle of armed men by the front door.