1. the quality of being fake, insincere, or not genuine

Examples

• The phoniness of his smile was obvious to everyone.
• She was tired of the phoniness in Hollywood.
• His phoniness became apparent when he couldn’t answer basic questions.
• The phoniness of the advertisement made customers suspicious.
• Despite his wealth, there was a phoniness about his charitable acts.
• The phoniness in her voice suggested she didn’t really care.