inquietude
/ɪnˈkwaɪətjuːd/noun
mass noun
- physical or mental restlessness or disturbance（身心的）不安, 搅扰; 焦虑。
词源
late Middle English （in the sense 'disturbance of one's quietness or rest'）： from Old French, or from late Latin inquietudo, from Latin inquietus, from in- 'not' + quietus 'quiet'.