Someone who doesn't let their emotions show and keeps their feelings private or hidden is often referred to as "stoic" or "emotionally reserved." Here's a brief explanation of each term:
Stoic: In ancient philosophy, Stoicism was a school of thought that emphasized the importance of self-control, rationality, and inner strength in facing life's challenges. In modern usage, a stoic person is someone who remains calm and composed, not easily affected by emotions or external events. They may choose to suppress or conceal their emotions, opting to maintain an outward appearance of detachment.
Emotionally Reserved: This term describes individuals who are guarded about expressing their emotions openly. They may prefer to keep their feelings to themselves, not revealing their emotional state to others. Emotionally reserved individuals might have various reasons for their demeanor, such as cultural upbringing, personal experiences, or a desire to maintain a sense of control over their emotional expressions.
It's important to note that being emotionally reserved or stoic doesn't necessarily mean that a person is devoid of emotions. People who appear stoic might still experience strong feelings but choose not to display them openly for various reasons. Individual differences in emotional expression are entirely normal, and people have their unique ways of processing and showing emotions.