Synonyms of tranquilly

2 Syllables
calmly, mildly, meekly, coolly, fluently, smoothly
3 Syllables
evenly, levelly, easily, soothingly, tepidly
4 Syllables
sedately, unhurriedly, motionlessly, peacefully, serenely, collectedly, unvaryingly, composedly
5 Syllables
unsurprisingly, imperturbably, unexcitedly