Flakiness/ˈfleɪkinəs/ Definition 1 of 4Pro Tip 1/3Personality Trait Indicates a person's habit of being unreliable, often with commitments or schedules. His flakiness is why he's never the one to organize events. Pro Tip 2/3Negative Connotation Usually implies a criticism and frustration regarding someone's lack of reliability. Her consistent flakiness might cost her the promotion. Pro Tip 3/3Social Context Often used when discussing social obligations, friendships, or interpersonal relationships. Nobody relied on Paul anymore due to his flakiness.