Delonte West has resurfaced following his most recent arrest ... appearing completely strung out while walking through a parking lot in Virginia -- and the video is heartbreaking.
TMZ Sports has obtained footage of the former Boston Celtics guard roaming around Arlington around 7 PM on Thursday ...wobbling and putting his hand to his head.
We're told West -- who was wearing a t-shirt, basketball shorts, slides and a red cap in the video -- frequents the area ... and it's not necessarily a great part of town.