— insensitiveness, insensitivity , n.
/in sen"si tiv/ , adj.
1. deficient in human sensibility, acuteness of feeling, or consideration; unfeeling; callous: an insensitive person.
2. not physically sensitive: insensitive skin.
3. not affected by physical or chemical agencies or influences: insensitive to light.
4. not readily responsive or aware: insensitive to the needs of the peasants.
[ 1600-10; IN- 3 + SENSITIVE ]