carefree

having no worries or responsibilities ที่ไร้กังวล, ที่ไม่มีความกังวลใจ

After teaching for a while, her carefree spirit led her to take the big step of founding a tutorial school.

The old school-day photo showed kids in uniform with bright smiles and carefree eyes that knew not what sadness lay ahead in the future.

Festivals invariably lead to carefree excess and a lowering of safety standards and this is reflected in heightened accident statistics.