- recluse, reclusive, withdrawn - withdrawn from society; seeking solitude; "lived an unsocial reclusive life"
Antonym: social (indirect, via unsocial)
- hermit, recluse, solitary, solitudinarian, troglodyte - one who lives in solitude
--1 is a kind of loner, lone wolf, lone hand
--1 has particulars: John the Baptist, St. John the Baptist