thick skin
Insensitivity to criticism or insult, as in You can tell him exactly what you think of his new piece; unlike most composers he has a thick skin. This term transfers an impervious outer coating to mental or emotional toughness. [Mid-1500s]
Insensitivity to criticism or insult, as in You can tell him exactly what you think of his new piece; unlike most composers he has a thick skin. This term transfers an impervious outer coating to mental or emotional toughness. [Mid-1500s]