acrasia
/əˈkreɪʒə/
noun
- A lack of self-control; acting against one's better judgment.
- His acrasia led him to eat the whole cake even though he was on a diet.
- She struggled with acrasia, knowing she should study but choosing to watch TV instead.
- Philosophers have debated whether acrasia is truly possible or just a failure of reason.
Antonyms