Definitions for "Hellish"
Of or pertaining to hell; like hell; infernal; malignant; wicked; detestable; diabolical.
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"
Keywords:  racket, awful, unpleasant, weather, god
very unpleasant; "hellish weather"; "stop that god-awful racket"