Alone.

There are six types of Loneliness: 

1.Interpersonal loneliness:This is the result of losing a significant other, or 'special' ############# 

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 sync 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. 

7. Other encompesses more than one type of loneliness.