adjective characteristic of or resembling the devil; wicked or evil
The politician's diabolical tactics were exposed during the election campaign.
The villain in the novel was described as having a diabolical plan to take over the world.
The dictator's diabolical regime led to widespread suffering and oppression.
The psychologist studied the diabolical nature of the criminal's behavior.
The antagonist's diabolical scheme was finally revealed in the climax of the movie.
The alien race was known for their diabolical technology and advanced weaponry.
In literature, the term 'diabolical' is often used to describe evil or wicked characters or plots in stories.
Psychologists may use the term 'diabolical' to describe extreme or malicious behavior in their patients, or to refer to certain psychological disorders.
Lawyers may use the term 'diabolical' to describe particularly cunning or malicious legal strategies employed by opposing counsel.
Detectives may use the term 'diabolical' to describe particularly sinister or complex criminal schemes or motives.
In the business world, 'diabolical' may be used to describe ruthless or underhanded tactics used by competitors or within a company.