Synonyms for Truly:

adv.

quite (adverb)
purely.
really (adverb)
really, actually, positively, literally, absolutely.
really, doubtlessly (adverb)
sincerely, reliably, veritably, rightly, precisely, definitely, faithfully, genuinely, loyally, factually, positively, righteously, actually, correctly, in truth, devotedly, steadily, authentically, honorably, absolutely, honestly, truthfully, exactly, Veraciously, accurately, surely, staunchly.
reliably (adverb)
reliably.
resolutely (adverb)
fearlessly, doggedly, heartily, relentlessly, loyally, persistently, deliberately, boldly, intently, valiantly, devotedly, toughly, faithfully, resolutely, staunchly, stubbornly, decidedly, tirelessly, steadily, courageously, decisively, diligently, tenaciously, indomitably, pluckily, dauntlessly, determinedly, indefatigably.
respectably (adverb)
blamelessly, righteously, angelically, worthily, irreproachably, right-mindedly, unimpeachably, virtuously, saintly, honorably, purely, fairly, law-abidingly, creditably, morally, forthrightly, nobly, respectably.
tenaciously (adverb)
enduringly, steadfastly, stonily, stiffly, strongly, undauntedly, fervently, bravely, unflaggingly, obstinately.
truly (adverb)
axiomatically, factually, definitely, veritably, honestly, rightly, certainly, authentically.
veraciously (adverb)
accurately, Veraciously, correctly, genuinely.

adv

aboveboard (adverb)
Veraciously.
absolutely (adverb)
decisively.
awfully (adverb)
immensely.
de facto (adverb)
veritably.
indeed (adverb)
in truth.
really (adverb)
actually, positively, honestly, verily, really, surely, authentically, absolutely.
resolutely (adverb)
fearlessly, doggedly, heartily, relentlessly, loyally, persistently, deliberately, boldly, intently, valiantly, devotedly, toughly, faithfully, resolutely, staunchly, stubbornly, decidedly, tirelessly, steadily, courageously, decisively, diligently, tenaciously, indomitably, pluckily, dauntlessly, determinedly, indefatigably.
respectably (adverb)
creditably, purely, unimpeachably, worthily, respectably, right-mindedly, blamelessly, honestly, fairly, irreproachably, angelically, righteously, morally, virtuously, forthrightly, nobly, saintly, law-abidingly, honorably.
tenaciously (adverb)
unflaggingly, determinedly, fervently, stonily, courageously, persistently, diligently, boldly, toughly, devotedly, dauntlessly, bravely, steadfastly, faithfully, indefatigably, indomitably, stiffly, strongly, undauntedly, tenaciously, heartily, enduringly, obstinately, staunchly, tirelessly, stubbornly, resolutely, pluckily, decisively, doggedly.
truly (adverb)
authentically, definitely, axiomatically, absolutely, factually, certainly, veritably, honestly, rightly.
veraciously (adverb)
authentically, Veraciously, accurately, genuinely, honestly, factually, correctly.

n.

certain, firm, factual, undeniable, objective, realistic, definite, authentic. accurate, right, strict, reliable, correct, precise, specific, scrupulously, exact, scientifically, justly, wrongly, reliably, unerring, perfect, exactly. simply, evidently, precisely, literally, essentially. deeply, well, a lot, particularly, thoroughly, immensely, greatly. in truth (noun)
for fair, true, verily, truthfully, indeed.
truly (noun)
genuinely, unfeignedly, forsooth, rightfully, sincerely, really, in truth.

Other synonyms:

basically
essentially.
honestly
truthfully.
in truth
in truth, verily, indeed.
Other relevant words:
exactly, true, particularly, precise, greatly, literally, factual, forsooth, thoroughly, correct, well, sincerely, truthfully, simply, reliably, essentially, authentic, justly, verily, right, for fair, rightfully, in truth, indeed, precisely, unfeignedly, certain, accurate, surely, reliable, definite, deeply.

Usage examples for truly

  1. This is a truly Odyssean journey. – Sketches and Studies in Italy and Greece, Vol III. by John Symonds
  2. " Truly it did," said the papa. – Christmas Every Day and Other Stories by W. D. Howells
  3. " I never thought it could look so well," he replied, and he spoke truly – A Galahad of the Creeks; The Widow Lamport by S. (Sidney) Levett-Yeats