Synonyms for Easily:

adv.

all (adverb)
easy, well.
facilely (adverb)
dexterously, handily, effortlessly, facilely, smoothly, deftly, efficiently, adroitly, simply, fluently.
gradually (adverb)
gradually, imperceptibly, evenly.
moderately (adverb)
coolly, tranquilly, calmly, relaxedly, pacifically, moderately, soothingly, composedly, gently, subduedly, quietly, temperately, softly.
willingly (adverb)
readily.
without a doubt (adverb)
probably, undoubtedly, clearly.
without difficulty (adverb)
plainly, fluently, hands down, quickly, regularly, facilely, coolly, readily, efficiently, effortlessly, steadily, surely, well, smoothly, no sweat, simply, handily, evenly, calmly, dexterously.

adv

calmly (adverb)
coolly, tranquilly.
certainly (adverb)
undoubtedly.
facilely (adverb)
dexterously, handily, effortlessly, facilely, smoothly, deftly, efficiently, adroitly, simply, fluently.
gradually (adverb)
gently, evenly, moderately, imperceptibly, gradually.
leisurely (adverb)
composedly.
moderately (adverb)
coolly, tranquilly, calmly, relaxedly, pacifically, moderately, soothingly, composedly, gently, subduedly, quietly, temperately, softly.
quickly (adverb)
hasty, like mad, fast, rapid, urgent, like a shot, in a flash/like a flash/quick as a flash, frenetic, hurried.
quietly (adverb)
calmly.
skillfully (adverb)
handily.
sufficiently (adverb)
well.
swimmingly (adverb)
effortlessly.
very well (adverb)
smoothly.

n.

firm, readily, objective, realistic, steadily, authentic, regularly, undeniable, surely, true, plainly, laboriously, hands down, factual, quickly, definite. clearly, possibly, guaranteed, undoubtedly, probably, certain, expected, bound, probable, likely. chilled, laid-back, cool, at one with, relaxed, calm, composed, at ease, nonchalant, easygoing. easily (noun)
well, easy, without (let or) hindrance, no worries, no sweat.
without a doubt (noun)
surely, undoubtedly, clearly.
without difficulty (noun)
efficiently, handily, coolly, effortlessly, quickly, dexterously, plainly, facilely, surely, steadily, readily, evenly, calmly, simply, hands down, regularly, smoothly.

Other synonyms:

handily
hands down.
Other relevant words:
certain, urgent, fast, definite, hurried, realistic, probable, possibly, firm, probably, objective, plainly, laid-back, undoubtedly, chilled, easygoing, well, steadily, frenetic, no sweat, factual, surely, rapid, authentic, hasty, expected, relaxed, cool, composed, laboriously, clearly, easy, regularly, guaranteed, calm, quickly, hands down, likely, undeniable, bound, readily, true, nonchalant.

Usage examples for easily

  1. He looked as if when his mind was made up he did not easily change it. – Peggy in Her Blue Frock by Eliza Orne White
  2. I 'm afraid that's more easily said than done. – The Cardinal's Snuff-Box by Henry Harland