Which trait defines a character that is robust and full of life?

The characteristic that best defines a character as robust and full of life is temperament. This trait encompasses the overall emotional and mental state that influences the way an individual reacts to the world around them. A person with a vibrant temperament often exhibits enthusiasm, energy, and a zest for life, contributing to a perception of robustness. This characteristic goes beyond physical attributes, reflecting how a person embodies vitality and emotional resilience.

While other traits like softness, hardness, and courage may relate to aspects of a character, they do not capture the essence of being full of life in the same comprehensive way. Softness suggests gentleness, which can imply fragility rather than vitality. Hardness reflects rigidity or toughness, which contrasts with the idea of a robust and lively nature. Courage, while a commendable trait, pertains more to the ability to confront fear or adversity rather than the overall essence of liveliness that temperament embodies. Thus, temperament stands out as the defining trait for robustness and vivacity in character.