Stiff-necked and Trigger-happy

Stiff-necked adjective - Having a feeling of superiority that shows itself in an overbearing attitude.

Trigger-happy and stiff-necked are semantically related. In some cases you can use "Trigger-happy" instead an adjective phrase "Stiff-necked".

Trigger-happy adjective - Irresponsible in the use of firearms.

Stiff-necked and trigger-happy are semantically related. Sometimes you can use "Stiff-necked" instead an adjective phrase "Trigger-happy".