Which is the appropriate word among the following for the given sentence.
Wicked to a high degree.

Heinous

The appropriate word among the following for the given sentence is heinous.

• Heinous means extremely wicked or evil.
• Hijacker is a person who takes control of a vehicle or aircraft by force.
• Honorary is given as an honor or distinction.
• Horizon is the line where the sky and the earth seem to meet.

The word heinous is the best fit because it conveys the idea of an act that is so evil that it is almost beyond comprehension. The word comes from the Latin word "heinous," meaning "hateful."