rec·luse
rec·luse/ˈreˌklo͞os,rəˈklo͞os/
noun
a person who lives a solitary life and tends to avoid other people.
"she has turned into a virtual recluse"
synonyms: hermit, ascetic, monk, nun, marabout, santon, eremite, anchorite, anchoress, stylite, cenobite, loner, solitary, lone wolf, introvert, misanthrope, solitudinarian, solitaire, solitarian, isolate
adjective
favoring a solitary life.