diabolical
Worthy of Satan
Diabolical means devilish or fiendishly cruel.
A diabolical plot is wickedly clever; a diabolical villain delights in causing suffering.
The word can describe genuine evil or be used with theatrical exaggeration: The parking situation downtown is diabolical.
In British English especially, diabolical serves as an emphatic complaint about anything awful: The service was diabolical.
Threateningly suggestive of harm
- malevolentHarboring ill will
- wickedEvil or slang-excellent
- villainousExtremely wicked or criminal
- heinousOdiously, shockingly evil
nefarious · depraved · vicious · corrupt · immoral · monstrous · atrocious · maleficent
Extremely unpleasant or cruel
- demonicOf or like devils
- satanicExtremely wicked or cruel
- LuciferRebellious angel of Christian theology
- BeelzebubPrince of demons
Mephistopheles · hellfire · brimstone · underworld · damnation · perdition · Hades · netherworld
Extremely cruel or wicked
- trickyDifficult to handle
- impossibleIncapable of occurring
- frustratingCausing irritation, blocking progress
- maddeningCausing extreme frustration
nightmarish · hellish · punishing · torturous · confounding · baffling · infuriating · exasperating
Crafty and calculating
- craftyCleverly deceptive
- deviousUnderhanded and calculating
- slyCleverly deceptive
- calculatingColdly self-serving in strategy
manipulative · conniving · shrewd · plotting · machination · stratagem · subterfuge · deception
sinister
Threateningly suggestive of harm
- malevolentHarboring ill will
- wickedEvil or slang-excellent
- villainousExtremely wicked or criminal
heinous · nefarious · depraved · vicious · corrupt · immoral · monstrous · atrocious · maleficent · iniquitous
hellish
Extremely unpleasant or cruel
- demonicOf or like devils
- satanicExtremely wicked or cruel
- LuciferRebellious angel of Christian theology
Beelzebub · Mephistopheles · hellfire · brimstone · underworld · damnation · perdition · Hades · netherworld · fiery
fiendish
Extremely cruel or wicked
- trickyDifficult to handle
- impossibleIncapable of occurring
- frustratingCausing irritation, blocking progress
maddening · nightmarish · hellish · punishing · torturous · confounding · baffling · infuriating · exasperating · vexing
scheming
Crafty and calculating
calculating · manipulative · conniving · shrewd · plotting · machination · stratagem · subterfuge · deception · trickery
sadistic
Finding pleasure in cruelty
savage · barbaric · inhuman · heartless · callous · vicious · torturous · malicious · vindictive · spiteful
- wickedevil, wicked, villainous, malicious, sinister
- Demonsdemons, demon, devils, fiends, Lucifer
- Hellhellfire, brimstone, lake of fire, eternal fire, perdition
- infernalhellish, demonic, satanic, fiendish, infernal
- SatanSatan, Lucifer, Beelzebub, Mephistopheles, prince of darkness
- spicinessmild, medium, hot, extra hot, spicy
diabolicalbenevolent
Desiring others' welfare
benign · benignant · kind-hearted · good-hearted · compassionate
- diabolical pactAgreement with evil forces
- diabolical choiceCruelly impossible decision