Wiktionary
bumblingly
adv. In a bumbling manner
Usage examples of "bumblingly".
He was enormously busy during the dinner, now bumblingly cheering Paul, now approaching McKelvey with "Hear, you're going to build some piers in Brooklyn," now noting how enviously the failures of the class, sitting by themselves in a weedy group, looked up to him in his association with the nobility, now warming himself in the Society Talk of McKelvey and Max Kruger.