juvenilely

he acted juvenilely during the meeting.

she juvenilely laughed at the serious situation.

the juvenilely playful behavior annoyed the adults.

they approached the problem juvenilely, without considering the consequences.

his juvenilely simplistic view of life surprised everyone.

she juvenilely insisted on having her way.

they juvenilely teased their friend about the mistake.

his response was juvenilely defensive.

she juvenilely dismissed the advice of her elders.

the juvenilely impulsive decision led to unexpected problems.