that may not be touched; of a nature such that it cannot be touched; not palpable; intangible.

too distant to be touched.

vile or loathsome to the touch.

beyond criticism, control, or suspicion

Modern writers consider no subject untouchable.

Hinduism . the former name given to a member of a lower caste in India whose touch was believed to defile a high-caste Hindu; Harijan. Compare scheduled caste.

a person who is beyond reproach as to honesty, diligence, etc.

a person disregarded or shunned by society or a particular group; social outcast

political untouchables.

a person or thing considered inviolable or beyond criticism

such untouchables as Social Security in the federal budget.

adjective

impalpable , imperceptible , intangible , inviolable , invulnerable , sacrosanct