restless

This term describes a state of internal tension that manifests as physical or mental instability. It often conveys a sense of agitation where the subject is unable to find a point of equilibrium, whether due to nervous energy, insomnia, or an overarching sense of dissatisfaction. When applied to a person's life stage or disposition, it suggests a craving for novelty and a refusal to settle. This creates a nuance of ambition or dissatisfaction that distinguishes it from simple nervousness, framing the lack of stillness as a drive for change or exploration.