understatement

US /ˌʌn.dɚˈsteɪt.mənt/
UK /ˌʌn.dɚˈsteɪt.mənt/
"understatement" picture
1.

控えめな表現, 過小評価

the presentation of something as being smaller, worse, or less important than it actually is

:
To say it was difficult would be an understatement.
それが困難だったと言うのは控えめな表現だろう。
His calm reaction was a huge understatement of his true feelings.
彼の冷静な反応は、彼の本当の感情を大きく控えめに表現したものだった。