1. comparative form of evil; more evil or wicked than something or someone else
Usage: informal or colloquial; the standard comparative form is 'more evil'

Examples

• Some people think that villain is eviler than the hero in that movie.
• The eviler twin in the story plots against his brother.
• He argued that the second dictator was eviler than the first.
• The eviler of the two options would be to ignore the problem entirely.
• In the fantasy novel, the dark lord is portrayed as eviler than any previous antagonist.