schizoid personality disorder
n//ˈskɪdzɔɪd ˌpɜɹsəˈnælɪti dɪsˈɔːdə(ɹ)//schizoid personlighetsstörning
(psychiatry) A personality disorder characterized by social withdrawal, flat affect, very few, if any, close friends or personal relationships, excessive preoccupation with fantasy and insensitivity to prevailing social norms and conventions.