Synonyms for peacefully

modified

1. Calmly

   tranquilly, quietly, composedly; see calmly, resting 1.

2. Without making trouble

   pacifically, conciliatingly, harmoniously, fraternally, placatingly, inoffensively, temperately, civilly; see also modestly 1.

   Antonyms angrily*, belligerently, hostile.