Synonyms of devilish

1 Syllable

bad

2 Syllables

brutish, ghoulish, evil, monstrous, jaunty, roguish, ribald, puckish, impish, prankish, chthonian, feller, elfin, hellborn, jauntier, ogreish, wicked, pixieish, hellish, cursed, fiendish

3 Syllables

inhuman, villainous, diabolic, uncanny, damnable, infernal, diablerie, teratoid, demoniac, demonic, coldblooded, atrocious, ferine, unearthly, satanic, accursed, nefarious, sulphurous, miscreated

4 Syllables

diabolical, detestable, demonical, gamesome, unhallowed, cloven-footed, iniquitous, serpentine, supernormal, demoniacal, satanical, supranormal, execrable, inhumane

5 Syllables

mephistophelian, hyperphysical