understatement

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

euphémisme, litote

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

:
To say it was difficult would be an understatement.
Dire que c'était difficile serait un euphémisme.
His calm reaction was a huge understatement of his true feelings.
Sa réaction calme était un énorme euphémisme de ses vrais sentiments.