4
early(adjective, adverb)
2
prematurely
2
promptly
2
rapidly
2
speedily
2
swiftly
1
ahead of time(adverb, before)
1
apace
1
beforehand
1
incipient
1
inopportunely
1
precociously
1
pronto
1
punctually
1
quickly
1
snappily
1
too soon(expression, tardily)
1
unseasonably
0
accurately
0
adequately
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APASmart Define. (2015). belatedly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/belatedly/thesaurus/antonyms
ChicagoSmart Define. 2015. "belatedly thesaurus" https://smartdefine.org/belatedly/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, belatedly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/belatedly/thesaurus/antonyms>.
MLASmart Define. "belatedly thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/belatedly/thesaurus/antonyms>