Inviolable
adjective
immune to attack; incapable of being tampered with
“an impregnable fortress”
Similar: impregnable, secure, strong, unassailable, unattackable
adjective
incapable of being transgressed or dishonored
“the person of the king is inviolable”
adjective
not capable of being violated or infringed
“infrangible human rights”
Similar: absolute, infrangible
adjective
must be kept sacred
Similar: inviolate, sacrosanct
Word family
inviolableness