temperament
A person’s natural way of feeling and reacting to things.
A person's temperament is their natural emotional style: the basic pattern of how they typically react to things, interact with others, and move through the world. Some people have a calm, even-keeled temperament, rarely getting too excited or upset. Others have a more fiery temperament, feeling emotions intensely and reacting quickly to situations.
Your temperament isn't about your mood, which changes throughout the day. It's more like your default setting, the emotional tendencies you were born with. A puppy with a playful temperament bounds up to everyone with enthusiasm, while one with a more cautious temperament holds back and watches before approaching. Similarly, one child might have a naturally optimistic temperament, seeing possibilities everywhere, while their sibling might be more skeptical by nature.
Understanding temperament helps explain why people respond so differently to the same situation. The student with an anxious temperament might lose sleep before a presentation, while their classmate with a confident temperament looks forward to it. Neither temperament is better or worse: a cautious temperament helps you avoid danger, while a bold temperament helps you try new things.
People often talk about someone having a good temperament for a particular role. A teacher needs patience, a leader benefits from steady nerves, and an inventor thrives with a curious, persistent nature. Your temperament shapes how you experience life, but it doesn't control your choices: even someone with a short temper can learn self-control and patience.