Unholy
WordNet
adjective
(1) Extremely evil or cruel; expressive of cruelty or befitting hell
"Something demonic in him--something that could be cruel"
"Fires lit up a diabolic scene"
"Diabolical sorcerers under the influence of devils"
"A fiendish despot"
"Hellish torture"
"Infernal instruments of war"
"Satanic cruelty"
"Unholy grimaces"
(2) Having committed unrighteous acts
"A sinful person"
(3) Not hallowed or consecrated
WiktionaryText