1. the quality or state of being critical; importance or seriousness that requires careful attention
2. the quality of involving careful judgment or analysis; the tendency to judge or evaluate things critically

Examples

• The criticalness of the situation demanded immediate action from the emergency team.
• Doctors emphasized the criticalness of early diagnosis in treating the disease.
• The criticalness of her analysis helped identify flaws in the original proposal.
• Due to the criticalness of the infrastructure, regular maintenance is essential.
• His criticalness toward every detail sometimes made collaboration difficult.
• The criticalness of cybersecurity in modern business cannot be overstated.