麺が伸びるを英語でなんと言うか？

soft でもいいと思いますが、是非 soggy を使ってください。20:44 the longer you leave the ramen noodle sitting in the broth, the soggier they get. and trust me, nobody like soggy ramen noodle. 麺を長くスープにつけておくと伸びてしまう。伸びたラーメンはまずくて食えない、、、だからラーメンはすすってたべる。

[Japanology Plus] Having Some Delicious Ramen ラーメン Season 1 EP 2
https://www.youtube.com/watch?v=voDLJB9Iwuo  2;34 it's actually really difficult to eat the noodles without slurping slurping them because they're so hot. and it's considered good to eat them as quickly as possible before they soak in the soup for too long and become soggy. 　
5 Misconceptions about Japan　日本に対する５つの誤解【日英字幕(追記・訂正)】