torpid
adjective formal uk/ˈtɔː.pɪd/ us/ˈtɔːr.pɪd/
不活泼的；（尤指因懒惰或困倦）迟钝的，呆滞的
not active; moving or thinking slowly, especially as a result of being lazy or feeling that you want to sleep
If you have a sudden loss of cabin pressure at 20,000 feet, passengers will become torpid and then lose consciousness. 如果在两万英尺的高空突然失去舱压，乘客会变得有气无力，继而失去知觉。