Wiktionary
slouchingly
adv. With a slouching posture or motion.
WordNet
slouchingly
adv. with a slouching gait or posture; "he stood slouchingly at the garden gate"
Usage examples of "slouchingly".
One of them would have been a handsome lad if he had not carried himself slouchingly and walked with a street lad's careless shuffling gait.
It was not necessary for him to carry himself slouchingly in her presence and he looked glowing and noble.