desensitize

verbs

cause not to be sensitive
"The war desensitized many soldiers"; "The photographic plate was desensitized"
desensitise, desensitize
is derived from
desensitization
antonym
sensitize
make insensitive
"His military training desensitized him"
desensitise, desensitize
is derived from
desensitization
antonym
sensitize