Synonyms of hellish

1 Syllable

cruel

2 Syllables

crueler, cruelest, monstrous, vicious, nastier, chthonian, hellborn, damned, wicked, ogreish, nasty, nastiest, fiendish

3 Syllables

diabolic, sanguineous, slaughterous, damnable, terrible, infernal, murderous, teratoid, nightmarish, traumatic, horrible, demonic, atrocious, devilish, barbarous, ferine, satanic, accursed, sulphurous, nefarious, miscreated

4 Syllables

diabolical, demonical, malevolent, bad-natured, demoniacal, satanical

5 Syllables

mephistophelian, abominable