9
hastily(adverb, earliness)
4
early(adjective, adverb)
4
beforehand(adverb, earliness)
4
betimes(adverb, early, sometimes)
4
inopportunely(adverb, inopportunely)
4
precipitately(adverb, hastily, impulsively, earliness, rashly)
4
precociously
4
rashly
4
too soon(expression, idiom, adverb, quick, directly)
4
untimely
3
unseasonably
2
abortively
2
anticipatorily
2
immaturely
2
impulsively
2
previously
2
time
1
agilely
1
ahead of time(expression, idiom)
1
anon
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APASmart Define. (2015). prematurely thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/prematurely/thesaurus/synonyms
ChicagoSmart Define. 2015. "prematurely thesaurus" https://smartdefine.org/prematurely/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, prematurely thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/prematurely/thesaurus/synonyms>.
MLASmart Define. "prematurely thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/prematurely/thesaurus/synonyms>