indefatigable

英[,ɪndɪ'fætɪgəb(ə)l] 美[,ɪndɪ'fætɪɡəbl]

英英释义实用场景例句

1. showing sustained enthusiastic action with unflagging vitality;: "an indefatigable advocate of equal rights"; "a tireless worker"; "unflagging pursuit of excellence"