[syn: demonic, diabolic, diabolical, fiendish, hellish, infernal, satanic, unholy]
The Collaborative International Dictionary of English v.0.48:
Hellish \Hell"ish\, a.
Of or pertaining to hell; like hell; infernal; malignant;
wicked; detestable; diabolical. "Hellish hate." --Milton. --
Hell"ish*ly, adv. -- Hell"ish*ness, n.
[1913 Webster]
WordNet (r) 3.0 (2006):
hellish
adj 1: very unpleasant; "hellish weather"; "stop that god-awful
racket" [syn: beastly, hellish, god-awful]
2: 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" [syn: demonic,
diabolic, diabolical, fiendish, hellish, infernal,
satanic, unholy]