imperturbable是什么意思音标:英 [ˌɪmpəˈtɜ:bəbl]美 [ˌɪmpɚˈtɜ:bəbəl]

a. 沉着的, 泰然自若的, 镇静的

s. not easily perturbed or excited or upset; marked by extreme calm and composure