AtD translation: A young person of neglected aspect

[Mike Jing]

P410.28-32   A young person of neglected aspect, holding a bottle of some
reddish liquid, accosted the boys. “You’re the ones lookin fer Alonzo
Meatman, I’ll bet.”

       “Maybe,” replied Darby, reaching for and grasping his
regulation-issue “preserver.” “Who wants to know?”

What does "of neglected aspect" mean? Does it mean "unkempt"?