(adj): prenominal), anaesthetic(prenominal) -- (characterized by insensibility
(adj): predicate), benumbed, numb -- (lacking sensation
(adj): predicate), unaffected(predicate) -- (unaware of or indifferent to
(adj): vs. sensitive) -- (deficient in human sensibility; not mentally or morally sensitive
(adj): barely able to be perceived
(adj): vs. perceptible), unperceivable -- (impossible or difficult to perceive by the mind or senses
(adj): unresponsive to stimulation
(adj): vs. conscious) -- (not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead
