21
sincerely(adverb, manner, sincere, politeness, really)
10
truly(adverb, true, real, just, absolutely)
9
honestly(adverb, absolutely, very, really, completely)
8
really(adverb, true, real, absolutely, exactly)
7
indeed(adverb, true, real)
6
actually(adverb, true, real, absolutely, really)
5
accurately(adverb, just, absolutely, very, really)
5
genuinely(adverb, true, real, absolutely, really)
5
straightforwardly
5
true(adverb, accurately, honestly)
5
veraciously(just, absolutely, really, completely, exactly)
4
candidly(adverb, completely, openly, honestly, naturally)
4
faithfully
4
frankly(adverb, openly, honestly, naturally)
4
honorably(adverb, absolutely, very, really, exactly)
4
in fact(expression, idiom, adverb, absolutely, very)
3
authentically(adverb, absolutely, very, really, exactly)
3
correctly(adverb, just, absolutely, very, really)
3
factually(adverb, absolutely, very, really, exactly)
3
fairly(adverb, true, real)
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APASmart Define. (2016). truthfully thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/truthfully/thesaurus/synonyms
ChicagoSmart Define. 2016. "truthfully thesaurus" https://smartdefine.org/truthfully/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, truthfully thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/truthfully/thesaurus/synonyms>.
MLASmart Define. "truthfully thesaurus" 3 March 2016. Web. 20 September 2026. <https://smartdefine.org/truthfully/thesaurus/synonyms>