Meaning : Not beset by troubles or disturbance or distress.
Example :
Seemed untroubled by doubts of any kind.
Untroubled sleep.
A kind untroubled face.
Characterized by or indicative of distress or affliction or danger or need.
Troubled areas.Meaning : Free from turmoil or worries.
Example :
Untroubled times.
Untroubled meaning in Bengali (Bangla).