Synonyms of unholy

1. unholy (vs. holy), unhallowed, profane, unconsecrated, unsanctified: usage: not hallowed or consecrated
2. demonic, diabolic, diabolical, fiendish, hellish, infernal, satanic, unholy, evil (vs. good): usage: 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"
3. sinful, unholy, wicked, unrighteous (vs. righteous): usage: having committed unrighteous acts; "a sinful person"