peacefully

This adverb describes a state of tranquility, absence of conflict, or a quiet manner of action. It is frequently used to describe the resolution of disputes or the manner of a person's passing, carrying a positive, serene connotation. In political or social contexts, it emphasizes the lack of violence or aggression during a transition or protest.

While "quietly" refers primarily to the level of noise, "peacefully" implies a deeper emotional or systemic harmony. Using "peacefully" in a context of death suggests a lack of suffering or struggle, whereas "quietly" would merely describe the volume of the environment.