unworried

adj.free of trouble and worry and care

同义词：carefree

Unworried but at Risk
First Data Unworried by Interchange Limit
FOOTBALL: Real Unworried by Slender Advantage
Ultra-Lux Bentley Unworried About Higher Taxes on Rich
Cricket: Gilchrist Impressed but Unworried by Hosts
EDA firms unworried about software piracy. (Intellectual Property).(Brief Article)
Unworried Parents of Well Children: A Look at Uninsured Children who Reportedly Don't Need Health Insurance
Unworried parents of well children: a look at uninsured children who reportedly do not need health insurance.
The Stage-Dependent Significance of SMC's: Responding to the Worried Well…and to the Unworried Unwell
Stage-Dependent Significance of Subjective Memory Complaints: Responding to the Worried Well … and to the Unworried Unwell.