Wiktionary
frightenedly
adv. In a frightened manner.
Usage examples of "frightenedly".
Only Maisry huddled frightenedly by the table, and the thought flickered through Kivrin's mind that Rosemund must have tripped over her.
Some proof of this was given when the abortive bear cub, which they had completely forgotten, came waddling frightenedly down the ramp.
Virginia Rapf whimpered frightenedly, dragging herself along the floor toward her fellow captive.