Freedom of speech is one of the sacrosanct rights of people in the United States of America.
The right to liberty is an example of something that would be described as sacrosanct.
Origin of sacrosanctClassical Latin sacrosanctus from sacer, sacred + sanctus, holy: see saint
Origin of sacrosanctLatin sacrōsānctus consecrated with religious ceremonies sacrō ablative of sacrum religious rite ( from ) ( neuter of sacer sacred ; see sacred . ) sānctus past participle of sancīre to consecrate ; see sak- in Indo-European roots.
(comparative more sacrosanct, superlative most sacrosanct)