1. the quality of being dull, lacking substance, or uninteresting

Examples

• The vapidness of the conversation made everyone want to leave early.
• Critics complained about the vapidness of the reality TV show.
• She was struck by the vapidness of his remarks during the interview.
• The novel’s vapidness disappointed readers who expected more depth.
• The meeting’s vapidness left participants feeling frustrated and bored.
• His speech suffered from a vapidness that failed to inspire the audience.