Of, resembling, or characteristic of a devil, as:
Of or in eternal bliss
Of Tartarus; infernal
Of, relating to, or being the period of time during which Earth formed, from the start of the solar system (4.6 billion years ago) until accretion, impact, and cooling led to stable Earth-Moon orbits and the formation of the earliest rocks on Earth (3.8 billion years ago).
Of, concerning, or characteristic of the devil; satanic.
Extremely bad, disagreeable, or difficult:
Merely negative; not helpful
Of or like God or a god
(Informal) Hateful; outrageous
Severe and distressing:
The definition of atrocious is something evil, cruel or absolutely horrible.
The definition of brutal is extreme violence, extreme unpleasantness with no attempt to disguise it, or extreme and punishing discomfort.
Extremely or ingeniously difficult, vexatious, etc.; fiendish
The definition of dreadful is terrible, shocking or very disturbing.
The definition of unpleasant is something or someone that causes displeasure or discomfort.
Unpleasant or objectionable:
extremely evil or cruel; expressive of cruelty or befitting hell
Find another word for hellish. In this page you can discover 39 synonyms, antonyms, idiomatic expressions, and related words for hellish, like: devilish, blessed, horrible, stygian, tartarean, hadean, chthonian, fiery, diabolical, fiendish and destructive.