adverb
without difficulty
Synonyms: calmly, comfortably, competently, conveniently, coolly, dexterously, efficiently, effortlessly, evenly, facilely, fluently, freely, handily, hand over fist, hands down, just like that, lightly, like nothing, no sweat, nothing to it, piece of cake, plainly, quickly, readily, regularly, simply, smoothly, steadily, surely, swimmingly, uncomplicatedly, well, with ease, with no effort, without a hitch, without trouble
Antonyms: difficultly
adverb
without a doubt
Synonyms: absolutely, actually, almost certainly, assuredly, beyond question, by far, certainly, clearly, decidedly, definitely, doubtless, doubtlessly, far and away, indeed, indisputably, indubitably, no doubt, plainly, positively, probably, really, surely, truly, undeniably, undoubtedly, unequivocally, unquestionably
Antonyms: doubtedly, dubitably, questionably