Grossly offensive to decency or morality; causing horror "subjected to outrageous cruelty" - hideous, horrid, horrific
Greatly exceeding bounds of reason or moderation "spends an outrageous amount on entertainment" - exorbitant, extortionate, steep, unconscionable, usurious, exhorbitant
See also: immoderate, offensive, outrage, outrageously, outrageousness