5
extra(adjective, spare, also, more, too)
5
conjointly(adverb, item, besides, yet, furthermore)
5
forbye(adverb, addition, obsolete)
5
to boot(adverb, addition)
5
withal(adverb, addition, obsolete)
4
beside(adverb, preposition, item, besides, yet)
4
complementarily(adverb, item, besides, yet, furthermore)
4
farther(adverb, extra, also, besides, then)
4
incrementally(adverb, item, besides, yet, furthermore)
4
supplementally(adverb, item, besides, yet, furthermore)
4
supplementarily(adverb, item, besides, yet, furthermore)
3
accessorily(adverb, item, besides, yet, furthermore)
3
auxiliarily(adverb, item, besides, yet, furthermore)
3
beyond(adjective, adverb, spare, extra, also)
3
else(adverb, item, besides, yet, furthermore)
3
in addition
3
more than(expression, also, besides, too, likewise)
2
extraly(adverb, item, besides, yet, furthermore)
2
along with(adverb, item, besides, yet, furthermore)
2
as well as(expression, idiom, still, extra, further)
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APASmart Define. (2016). additionally thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/additionally/thesaurus/synonyms
ChicagoSmart Define. 2016. "additionally thesaurus" https://smartdefine.org/additionally/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, additionally thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/additionally/thesaurus/synonyms>.
MLASmart Define. "additionally thesaurus" 12 February 2016. Web. 22 September 2026. <https://smartdefine.org/additionally/thesaurus/synonyms>