Synonyms of easily in English:

effortlessly, comfortably, simply, straightforwardly

with ease, without effort, with no trouble, with no bother, without difficulty, without a hitch, smoothly, on cruise control

skilfully, deftly, nimbly, smartly, very well

informal no sweat

undoubtedly, doubtlessly, without doubt, without question, indubitably, indisputably, undeniably, definitely, certainly, assuredly, positively, absolutely, clearly, obviously, patently, simply, surely, by far, far and away, by a mile, beyond the shadow of a doubt

informal as sure as eggs is eggs