unsocial (adj.)

• aloof
• anchoritic
• antisocial
• autistic
• bashful
• chilly
• close
• cold
• cool
• detached
• dissociable
• distant
• hermitical
• hostile
• incompatible
• inhospitable
• misanthropic
• morose
• nongregarious
• reclusive
• reserved
• retiring
• self-contained
• self-sufficient
• snug
• solitary
• standoffish
• sullen
• uncommunicative
• uncongenial
• unfriendly
• unsociable
• withdrawn