急きゅう雨うきゅううMeanings1nounrain shower; sudden rainrare termRare literary term for a sudden rain shower. In modern Japanese, 俄雨 (にわかあめ) is the common equivalent.See also: 俄雨急きゅう雨うに降ふられて、軒のき下したで雨あま宿やどりをした。Caught in a sudden rain shower, I took shelter under the eaves.