Diabolical vs. Evil — What's the Difference?

Of, concerning, or characteristic of the devil; satanic.

Evil, in a general sense, is defined by what it is not—the opposite or absence of good. It can be an extremely broad concept, although in everyday usage it is often more narrowly used to talk about profound wickedness.

Appropriate to a devil, especially in degree of wickedness or cruelty.

Morally bad or wrong; wicked

Extremely wicked or cruel.

Causing ruin, injury, or pain; harmful

Of or concerning the devil; satanic.

Characterized by or indicating future misfortune; ominous

Showing the cunning or ingenuity or wickedness typical of a devil;

Bad or blameworthy by report; infamous

Extremely evil or cruel; expressive of cruelty or befitting hell;

Characterized by anger or spite; malicious

The quality of being morally bad or wrong; wickedness.

That which causes harm, misfortune, or destruction

An evil force, power, or personification.

Something that is a cause or source of suffering, injury, or destruction

In an evil manner.

Intending to harm; malevolent.

Morally corrupt.

Unpleasant, foul (of odour, taste, mood, weather, etc.).

Producing or threatening sorrow, distress, injury, or calamity; unpropitious; calamitous.

(obsolete) Having harmful qualities; not good; worthless or deleterious.

Undesirable; harmful; bad practice.

Moral badness; wickedness; malevolence; the forces or behaviors that are the opposite or enemy of good.

Something which impairs the happiness of a being or deprives a being of any good; something which causes suffering of any kind to sentient beings; harm; injury; mischief.

(obsolete) A malady or disease; especially in combination, as in king's evil, colt evil.

(obsolete) wickedly, evilly, iniquitously

(obsolete) injuriously, harmfully; in a damaging way.

(obsolete) badly, poorly; in an insufficient way.

Having qualities tending to injury and mischief; having a nature or properties which tend to badness; mischievous; not good; worthless or deleterious; poor; as, an evil beast; and evil plant; an evil crop.

Having or exhibiting bad moral qualities; morally corrupt; wicked; wrong; vicious; as, evil conduct, thoughts, heart, words, and the like.

Producing or threatening sorrow, distress, injury, or calamity; unpropitious; calamitous; as, evil tidings; evil arrows; evil days.

Anything which impairs the happiness of a being or deprives a being of any good; anything which causes suffering of any kind to sentient beings; injury; mischief; harm; - opposed to good.

Moral badness, or the deviation of a moral being from the principles of virtue imposed by conscience, or by the will of the Supreme Being, or by the principles of a lawful human authority; disposition to do wrong; moral offence; wickedness; depravity.

Malady or disease; especially in the phrase king's evil, the scrofula.

In an evil manner; not well; ill; badly; unhappily; injuriously; unkindly.

Morally objectionable behavior

That which causes harm or destruction or misfortune;

The quality of being morally wrong in principle or practice;

Morally bad or wrong;

Having the nature of vice

Tending to cause great harm

Having or exerting a malignant influence;