10
licitly(adverb, legally)
9
lawfully(adverb, legally)
7
genuinely(adverb, well, absolutely, very, really)
7
rightly(adverb, absolutely, really, exactly, correctly)
6
legally(adverb, correctly, fairly, properly, accurately)
6
properly(adverb, correctly, fairly, accurately, honestly)
6
truly(adverb, well, absolutely, really, certainly)
5
permissibly(adverb, legally)
4
accurately(adverb, absolutely, really, exactly, correctly)
4
authentically(adverb, well, absolutely, very, really)
3
honestly(adverb, well, absolutely, really, exactly)
3
in actuality(expression, adverb, well, absolutely, very)
3
in reality(expression, adverb, well, absolutely, very)
3
justifiably
3
really(adverb, well, absolutely, very, exactly)
3
rightfully
3
statutorily(adverb, legally)
3
undoubtedly(adverb, well, absolutely, really, certainly)
2
actually(adverb, well, absolutely, really, easily)
2
allowably
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APASmart Define. (2015). legitimately thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/legitimately/thesaurus/synonyms
ChicagoSmart Define. 2015. "legitimately thesaurus" https://smartdefine.org/legitimately/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, legitimately thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/legitimately/thesaurus/synonyms>.
MLASmart Define. "legitimately thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/legitimately/thesaurus/synonyms>