hikikomori /hi-kē-kō-mōˈri or -möˈri/

1. (in Japan) complete withdrawal from society for a prolonged period
2. A person, usu an adolescent male, who does this

• umbraculum
• umbrae
• umbrage
• umbraged
• umbrageous
• umbrageously
• umbrageousness
• umbrageousnesses
• umbrages
• umbraging
• umbral
• umbras
• umbrated
• umbratic
• umbratical
• umbratile
• umbratilous
• umbre
• umbrel
• umbrella
• umbrella-ant
• umbrella-ants
• umbrella bird
• umbrella birds
• umbrella'd