Noun
indissolubility (uncountable)
The quality or state of being indissoluble.
A marriage is a union of a man and a woman whose principal characteristics include permanence (indissolubility), faithfulness and openness to children. Source: Internet
He stresses the indissolubility and sacramental nature of marriage, the transmission of life and the education of children. Source: Internet
I remain an apostle of the indissolubility of marriage, but once domestic violence and abuse are involved, marriage loses its saltiness. Source: Internet