insensate

他做出了无理性的决定，在暴风雪中徒步旅行。

He made an ___insensate choice to go hiking in the blizzard.

他对受害者的痛苦表现出完全无动于衷的冷漠。

He showed ___insensate indifference to the suffering of the victims.

他在车祸后陷入无意识状态，对外界刺激毫无反应。

After the car accident, he lay ___insensate, showing no response to any stimuli.