abysmal
abys·mal
/əˈbızməl/ adj [more ~; most ~]
: extremely poor or bad
They were living in abysmal ignorance/poverty.
abysmal [=horrible] living conditions
The team had an abysmal [=awful] record.
Her grades were abysmal. [=terrible]
abys·mal·ly adv
abysmally ignorant
The house is in abysmally poor condition.