Synonyms for Honestly:

adv.

artlessly (adverb)
candidly, straightforwardly, un-artificially, sincerely, trustingly, directly, bluntly, plainly, frankly, naively, unsophisticatedly, unaffectedly, naturally, artlessly, unrestrainedly, openly, unartfully.
in an honest manner (adverb)
justly, sincerely, genuinely, fairly.
justly (adverb)
virtuously.
openly (adverb)
naturally.
really (adverb)
truly, naturally, indeed.
respectably (adverb)
purely, worthily, blamelessly, saintly, righteously, nobly, creditably, forthrightly, morally, angelically, honorably, right-mindedly, virtuously, irreproachably, unimpeachably, respectably, fairly, law-abidingly.
simply (adverb)
unaffectedly.
truly (adverb)
authentically, certainly, absolutely, definitely, veritably, axiomatically, factually, rightly, truly.
truthfully (adverb)
truthfully, trustworthily, ethically, earnestly.
veraciously (adverb)
genuinely, Veraciously, correctly, accurately.

adv

aboveboard (adverb)
Veraciously.
artlessly (adverb)
plainly, unaffectedly, bluntly, trustingly, straightforwardly, openly, candidly, frankly, naturally, artlessly, genuinely, un-artificially, unsophisticatedly, naively, unrestrainedly, sincerely, directly, unartfully.
justly (adverb)
righteously, straightforwardly, respectably, fairly.
openly (adverb)
forthrightly, artlessly.
really (adverb)
indeed, really, genuinely, authentically.
respectably (adverb)
virtuously, forthrightly, nobly, right-mindedly, worthily, angelically, morally, purely, saintly, truly, honorably, respectably, righteously, unimpeachably, creditably, blamelessly, irreproachably, law-abidingly, fairly.
truly (adverb)
authentically, certainly, absolutely, definitely, veritably, axiomatically, factually, rightly, truly.
truthfully (adverb)
ethically, honorably, straightforwardly, sincerely, candidly, trustworthily, earnestly, truthfully, factually, frankly.
veraciously (adverb)
factually, accurately, authentically, correctly, genuinely, truly, Veraciously.

n.

clearly, evidently, actually, justly, surely, essentially, literally, precisely, simply. genuine, irreproachable, sincere, principled, decent, upstanding, fine, truthful, good, honest. darn, for heaven's sake/sakes, brother, for pity's sake, what's the big idea?, for crying out loud, give me a break, give me strength, what's that supposed to mean?. honestly (noun)
frankly, candidly, aboveboard.

Other synonyms:

clearly, evidently, simply, surely, essentially. literally. precisely. honorably
justly.
in fact
really.
Other relevant words:
decent, literally, simply, sincere, clearly, brother, upstanding, evidently, indeed, essentially, justly, fine, actually, really, precisely, irreproachable, truthful, honest, aboveboard, good, genuine, principled, darn, surely.

Usage examples for honestly

  1. Do not interrupt me, and answer honestly what I shall ask you. – The Complete Historical Romances of Georg Ebers by Georg Ebers
  2. Whether the vicar was wise in giving the answer he did, it would be hard to say: but he was a man who honestly tried to do his best. – A Tale of a Lonely Parish by F. Marion Crawford
  3. Now, honestly how do I look? – Molly Bawn by Margaret Wolfe Hamilton