sensitive vs insensitive

sensitive is a noun but insensitive is not a noun.

Word	Noun	Adjective	Verb	Adverb
sensitive	Yes	Yes	No	No
insensitive	No	Yes	No	No

sensitive (noun)	insensitive (noun)
someone who serves as an intermediary between the living and the dead

sensitive (adjective)	insensitive (adjective)
responsive to physical stimuli	not responsive to physical stimuli
being susceptible to the attitudes, feelings, or circumstances of others	deficient in human sensibility; not mentally or morally sensitive
able to feel or perceive
of or pertaining to classified information or matters affecting national security
hurting