inviolable (adj.)
- awesome
- awful
- blessed
- chaste
- consecrated
- dependable
- divine
- hallowed
- heavenly
- holy
- impenetrable
- impregnable
- incontestable
- incorruptible
- indomitable
- ineffable
- inexpressible
- inexpugnable
- insuperable
- invincible
- inviolate
- invulnerable
- irresistible
- numinous
- overpowering
- overwhelming
- proven
- pure
- reliable
- religious
- resistless
- responsible
- sacred
- sacrosanct
- spiritual
- straight
- sure
- tested
- tried
- true
- trustworthy
- trusty
- unassailable
- unbeatable
- unconquerable
- unspeakable
- unsubduable
- unsurmountable
- untouchable
- unutterable
- unyielding
- venerable