42
sincerely(expression, adverb, manner, sincere, politeness)
36
really(adverb, interjection, true, truth, real)
26
absolutely(adverb, interjection, well, just, greatness)
23
actually(adverb, true, truth, real, really)
20
in truth(expression, idiom, adverb, certainty, absolutely)
20
indeed(noun, adverb, interjection, true, truth)
18
genuinely(adverb, true, real, veraciously)
18
certainly(adverb, truth, certainty, assent)
18
positively(adverb, true, real, really)
17
honestly(adverb, interjection, well, absolutely, very)
15
in fact(expression, idiom, adverb, well, absolutely)
15
definitely(adverb, absolutely, really, exactly, positively)
14
unequivocally(adverb, just, greatness, absolutely, completely)
13
surely(adverb, well, absolutely, really, exactly)
11
in reality(expression, idiom, adverb, well, truth)
10
truthfully(adverb, true, real, just, absolutely)
10
unquestionably(adverb, well, absolutely, assent, really)
10
verily(adverb, feature, characteristic, true, truth)
9
doubtless(adverb, certainty, likely, assent, really)
9
accurately(adverb, just, absolutely, completely, exactly)
<1234510>
10 years ago|18k views|share |citing 
APASmart Define. (2016). truly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/truly/thesaurus/synonyms
ChicagoSmart Define. 2016. "truly thesaurus" https://smartdefine.org/truly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, truly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/truly/thesaurus/synonyms>.
MLASmart Define. "truly thesaurus" 11 March 2016. Web. 21 September 2026. <https://smartdefine.org/truly/thesaurus/synonyms>