Definition: tending to reserve or introspection
Usage: a quiet indrawn man
Similar words: reserved
Definition: marked by self-restraint and reticence
Usage: was habitually reserved in speech, withholding her opinion-Victoria Sackville-West
Synonyms: withdrawn, recluse, reclusive
Definition: withdrawn from society; seeking solitude
Usage: lived an unsocial reclusive life
Similar words: unsocial
Definition: not seeking or given to association; being or living without companions
Usage: the unsocial disposition to neglect one's neighbors