short-handed short-staffed undermanned understaffed
short-handed%5:00:00:inadequate:00 short-staffed%5:00:00:inadequate:00 undermanned%5:00:00:inadequate:00 understaffed%5:00:00:inadequate:00
inadequate in number of workers or assistants etc.
they're rather short-handed at the moment overcrowded and understaffed hospitals