1. plural of essentialness; the quality or state of being essential or absolutely necessary
Usage: abstract noun; formal/academic register

Examples

• The essentialnesses of water, oxygen, and food to human survival cannot be overstated.
• Philosophers debate the essentialnesses of various virtues in ethical systems.
• The report emphasized the essentialnesses of infrastructure investment for economic growth.
• Different cultures may assign different essentialnesses to various social rituals.
• The essentialnesses of these core competencies were highlighted in the job description.