Obviously one that isn't involved at all is a deadbeat... my dad never bothered with me but I can't miss what I never had. Sucks but that's life.
could also apply to mums but we know it's most commonly deadbeat dads
but what about the dads who haven't totally disappeared but show up for an hour or so once every few months??? The dads who prioritised their new family over their older child/children?? the dads who do F all for their kids but the kid think it's wonderful when they show up a few times a year??
is that a deadbeat too??