Why is it die Zerrissenheit?

Zerrissenheit ends in -heit, and nouns ending in -heit are feminine: in a German dictionary, 99% of them take die.

All nouns ending in -heit
Sense 1
die

Meaning

[1] Philosophy: Connection of the individual

[1] Philosophie: Zwiespalt des Individuums

Examples

[1] In many of his novels, Kafka addresses the tornness of the individual

[1] In vielen seiner Romane thematisiert Kafka die Zerrissenheit des Individuums.

Declension

1 Singular Plural
Nominativ die Zerrissenheit —
Genitiv der Zerrissenheit —
Dativ der Zerrissenheit —
Akkusativ die Zerrissenheit —

Pronunciation

Dictionary entries include material from Wiktionary. Wiktionary