a. 令人敬畏的;可怕的
a. 难对付的
formidable task/challenge 任务艰巨/挑战很大
The new range of computers have formidable processing power. 该系列的新型计算机处理能力惊人。
They had to overcome formidable obstacles. 他们得克服重重障碍。
BrE /əˌbriːviˈeɪʃn/