zealous

This word carries a high-energy vibration that can swing between positive and negative depending on the observer. When used positively, it suggests a passionate, tireless commitment to a noble goal, often associated with religious or social devotion. It implies a level of fervor that goes beyond mere interest. When used critically, it suggests an intensity that borders on fanatical or obsessive. A zealous person might be seen as overbearing or uncompromising, pushing their beliefs upon others with an aggressive urgency that ignores nuance or moderation.