Collocations for neglected - adj.

be, feel, lie, look, remain, seem, stand
His tools lay neglected in the garden.

become, get

badly, extremely, much, sadly, seriously, sorely, very, woefully
It is a sadly neglected work. | The building is sorely neglected.

largely | comparatively, rather, relatively, somewhat | hitherto, previously | unjustly
She is an excellent and unjustly neglected author.

be, look
The group of street children looked ragged and neglected.

badly, grossly, severely