not shed a tear

To not cry or else demonstrate any emotional reaction to some sad event or situation. My father hasn't shed so much as a tear for as long as I can remember, but I saw his eyes well up when our dog Spot had to be put down. To be honest, I've always hated her guts. Now that she's gone, I'm not exactly shedding any tears.

not shed a tear

Fig. not to show any emotion even when something is very sad. At his uncle's funeral, he didn't shed a tear. They never got along.