understating

noun
UK /ˌʌndəˈsteɪtɪŋ/
US /ˌʌndərˈsteɪtɪŋ/

Saying something is smaller or less important than it really is.

Calling the storm 'a little rain' was a big understating of the danger.


OTHER MEANINGS

2. The act of describing something in a way that makes it seem less serious or impressive.

Her understating of the team's effort made everyone feel unappreciated.

3. A statement that is weaker than the truth, often used for effect.

Saying he was 'a bit tired' after running a marathon was pure understating.

4. The habit of not drawing attention to your own achievements.

His understating about winning the prize surprised his friends.