pusillanimous

This term describes a specific type of cowardice characterized by a lack of spirit or resolve. It carries a strong pejorative weight, suggesting not just a momentary fear, but a deep-seated deficiency in character and a chronic inability to face adversity. In professional or formal writing, it is used to criticize leadership or decision-making that is overly cautious or subservient. It is significantly more formal and severe than words like timid or shy, implying a moral failure rather than a personality trait.