Why is it das Understatement?

Understatement ends in -ment, and nouns ending in -ment are neuter: in a German dictionary, 97% of them take das.

All nouns ending in -ment
Sense 1
das

Meaning

[1] Expression that shows a little understatement/downplayed

[1] Ausdrucksweise, durch die etwas untertrieben dargestellt/verharmlost wird

Examples

[1] "Clinton, like many of his predecessors, was a president who, with mild understatement as a Womanizer, delivered through his term and his election campaigns"

[1] „Clinton war, wie viele seiner Vorgänger, ein Präsident, der mit mildem Understatement als Womanizer durch seine Amtszeit und seine Wahlkämpfe lief.“

[1] "Understatement is more estimated than label sacrifice"

[1] „Understatement wird mehr geschätzt als Etiketten-Beflissenheit.“

Declension

1 Singular Plural
Nominativ das Understatement die Understatements
Genitiv des Understatements der Understatements
Dativ dem Understatement den Understatements
Akkusativ das Understatement die Understatements

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary