1. The quality or state of being momentous; great importance or significance.
Usage: Plural form of momentousness; Abstract noun; typically used in formal or academic contexts

Examples

• The momentousnesses of the historical decisions were not lost on the assembled leaders.
• She reflected on the momentousnesses of the events that had shaped her life.
• The momentousnesses of these scientific breakthroughs cannot be overstated.
• Different cultures recognize the momentousnesses of various milestones differently.
• The momentousnesses of the treaty negotiations were evident in every discussion.