: the ability to control yourself : strong determination that allows you to do something difficult (such as to lose weight or quit smoking)
The dessert buffet tested my willpower.
He conquered his drinking problem through sheer willpower.
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“Willpower.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/willpower. Accessed 14 Apr. 2026.
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