unprecedentedly
🇺🇸
/ʌnˈpresɪdentɪdli/
🇬🇧
/ʌnˈpresɪdentɪdli/
adverb
R
never done or seen before
The city experienced unprecedentedly heavy rainfall this year.
今年這座城市經歷了前所未有的強降雨。
translation
空前的