serene

US /səˈriːn/
UK /səˈriːn/
"serene" picture
1.

calm, peaceful, and untroubled; tranquil

:
•
The lake was serene in the early morning light.
•
She had a serene expression on her face.
:
calmpeacefultranquilplaciduntroubled
:
agitatedtroubledturbulentchaoticdisturbed