hideous

(s) grossly offensive to decency or morality; causing horror
- subjected to outrageous cruelty
- a hideous pattern of injustice
- horrific conditions in the mining industry
horrific, outrageous, horrid,
(s) so extremely ugly as to be terrifying
- a hideous scar
- a repulsive mask
repulsive,

horrific outrageous horrid repulsive

hideout

hideously hideousness