1. a person who has an abnormal tendency to lie or exaggerate
Usage: psychology

Examples

• The mythomaniac told elaborate stories about his fictional adventures.
• Her reputation as a mythomaniac made people doubt even her truthful statements.
• The therapist worked with the mythomaniac to understand the root of his compulsive lying.
• Friends grew tired of the mythomaniac’s constant exaggerations about his accomplishments.
• The mythomaniac seemed unable to distinguish between reality and his fabricated tales.
• Colleagues learned to verify information from the known mythomaniac in their office.