1. a person who pretends or makes a false show of something; one who feigns

Examples

• He was revealed to be a feigner when his true identity came to light.
• The feigner claimed to have years of experience but had never worked in the field.
• She was a skilled feigner, able to convince anyone of her false emotions.
• The detective suspected the witness was a feigner and pressed for the truth.
• No one trusted the feigner after he was caught in multiple lies.