Zealot/ˈzelət/ Definition 1 of 2Pro Tip 1/3Intensity of Belief Zealot implies a fervent, sometimes excessive support for a belief or cause. His reputation as a zealot grew due to his relentless activism. Pro Tip 2/3Negative Connotation While enthusiastic, 'zealot' can suggest close-mindedness or intolerance. She's not just passionate; some see her as a zealot unwilling to listen. Pro Tip 3/3Passion vs. Obsession Distinguishing between healthy passion and being a zealot is key in conversation. Her passion for clean eating sometimes bordered on being a zealot.