IPA: /səˈriːnli/
KK: /səˈrinli/
In a calm and peaceful way, without disturbance or agitation.
She smiled serenely as she watched the sunset.
**Serenely** → It is formed from "serene" (from Latin *serenus*, meaning clear, calm, or tranquil) and the suffix "-ly" (meaning in a manner of). The word "serenely" means in a calm or tranquil manner.
Think of being calm and clear like a peaceful sky — that's what 'serenely' means, doing something in a calm manner.