desensitising

/D IH0 S EH1 N S AH0 T AY0 Z IH0 NG/
verb
  1. 1

    To cause to become less sensitive or insensitive.

    โ€œWorking in an Operating Room desensitized me to the sight of blood.โ€

Source: https://en.wiktionary.org/wiki/desensitise, https://en.wiktionary.org/wiki/desensitising, https://en.wiktionary.org/wiki/desensitize