Tough-skinned
Part of speech: adjective
Definition: Resilient; able to endure hardship or criticism, with no apparent adverse effects.
Insensitive
Part of speech: adjective
Definition: not having normal physical feelingnot having normal emotional feelings, cold, tactless, undiplomatic
Example sentence: I am not the Jeff Sessions my detractors have tried to create. I am not a racist. I am not insensitive to blacks.