hikikomori

 
Pronunciation: /hɪˌkɪkə(ʊ)ˈmɔːri/

noun (plural )

[mass noun]
  • (in Japan) the abnormal avoidance of social contact, typically by adolescent males.
  • [count noun] a person who avoids social contact.

Origin:

Japanese, literally 'staying indoors, (social) withdrawal'