1. Interpersonal loneliness: This is the result of losing a significant, or intimate, relationship.
2. Social loneliness: This is where a person is on the fringes of a group, excluded from a group, or is actively rejected.
3. Cultural loneliness: This is where a person belongs to a different culture and feels that they don’t fit, or belong, in the new culture.
4. Intellectual loneliness: This is where a person feels intellectually, or educationally, out of synch with their peers, their family or their social group.
5. Psychological loneliness: This is where a person has experienced a trauma that separates them out from others around them. That is, it’s something other people can’t fully understand.
6. Existential or cosmic loneliness: This is an isolating loneliness experienced by a person who is facing death.