willpower

This term describes the internal strength used to override immediate desires in favor of a disciplined objective. It carries a connotation of mental endurance and moral fortitude, often framed as a finite resource that can be depleted through decision fatigue.

As an uncountable noun, it does not have a plural form and cannot be counted with numbers. To quantify it, one must use partitive phrases such as a great deal of willpower or a lack of willpower.