A person who doesn't like people or prefers to spend time alone is often described as an "introvert." Introverts are individuals who tend to feel more comfortable and energized in solitary or low-stimulation environments, and they may find social interactions draining or overwhelming. It's important to note that being an introvert is a personality trait and not a mental disorder. Many introverts can have fulfilling social lives, but they often prefer smaller gatherings or one-on-one interactions rather than large social events.
It's essential to differentiate between being an introvert, which is a natural personality characteristic, and conditions like social anxiety disorder, which involve intense fear or discomfort in social situations and can significantly impact a person's life and well-being. If someone's aversion to people goes beyond a typical personality preference and causes significant distress or impairment in their daily life, it may be helpful for them to seek professional support and evaluation to understand their feelings and behaviors better.