inalienable
invulnerable
sacred
unalienable
unassailable
untouchable
awesome
awful
blessed
chaste
consecrated
dependable
divine
durable
faithworthy
hallowed
heavenly
holy
impenetrable
impregnable
incontestable
incorruptible
indomitable
ineffable
inenarrable
inexpressible
inexpugnable
insuperable
invincible
inviolate
irresistible
numinous
overpowering
overwhelming
proven
pure
reliable
religious
resistless
responsible
sacramental
sacrosanct
spiritual
straight
sure
tested
to be trusted
tried
tried and true
conjugal
inaccessible
inflexible
innermost
irrevocable
monastic
strict
unalterable
unbreakable
unbroken
unchanging
undeviating
undying
unshaken
unsullied
unswerving
violable