diabolical

As adjectives the difference between malevolent and diabolical

is that malevolent is having or displaying ill will; wishing harm on others while diabolical is extremely wicked or cruel.

As adjectives the difference between infamous and diabolical

is that infamous is having a bad reputation, disreputable; of bad report; notoriously vile; detestable; widely known, especially for something bad while diabolical is extremely wicked or cruel.

As adjectives the difference between dynamic and diabolical

is that dynamic is changing; active; in motion while diabolical is extremely wicked or cruel.

As a noun dynamic

is a characteristic or manner of an interaction; a behavior.

Diabolical is a related term of malicious.

As adjectives the difference between diabolical and malicious

is that diabolical is extremely wicked or cruel while malicious is of, pertaining to, or as a result of malice or spite.

Unpitying is a related term of diabolical.

As adjectives the difference between unpitying and diabolical

is that unpitying is not feeling or showing pity while diabolical is extremely wicked or cruel.

As an adjective diabolical

is extremely wicked or cruel.

As a noun depravity is

the state or condition of being depraved; moral debasement.

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As an adjective diabolical

is extremely wicked or cruel.

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As an adjective diabolical is

extremely wicked or cruel.

As adjectives the difference between tartarean and diabolical

is that tartarean is of or relating to Tartarus while diabolical is extremely wicked or cruel.

Diabolical is a related term of infernal.

As adjectives the difference between diabolical and infernal

is that diabolical is extremely wicked or cruel while infernal is of or relating to hell, or the world of the dead; hellish.

As a noun infernal is

(obsolete) an inhabitant of the infernal regions.