柯林斯詞典crestfallen /?kr?st?f??l?n/ 1. ADJ If you look crestfallen, you look sad and disappointed about something. 垂頭喪氣的[usu v-link ADJ] 返回 crestfallen劍橋詞典disappointed and sad because of having failed unexpectedly 垂頭喪氣的；沮喪的 He looked crestfallen at their decision . 聽了他們的決定他滿臉沮喪。 返回 crestfallen