sub·hu·man 
/ˌsʌbˈhju:mən/ adjective
1 : not having or showing the level of kindness, intelligence, etc., that is expected of normal human beings
▪ The prisoners suffered subhuman treatment. ▪ subhuman murderers
2 : not suitable for human beings
▪ subhuman living conditions —
compare inhuman, nonhuman 
