Avoidant and schizoid personality are special types of personality most times referred to as a disorder. People with Avoidant personality are referred to as people that are extremely sensitive to rejection and are scared of being rejected.
These people lack social interest, and due to fear of criticism, while Schizoid are people with another special personality, they have more interest in their inner self, the withdrawal from society most times to enjoy their space, they are emotionally cold.
Schizoid can be said to be coldness, apathy, lack of interaction, preferring your own company, being in their world and space, and being happy in it. Schizoid personality involves having a few friends, no interest in sexual activities, prefer indoor activities to outdoor activities. They can be caused by neglecting or rejection from the parent or peer groups.