Synonyms|69Antonyms|0|Broader|5Narrower|0Related|14
3
quickness
2
celerity
2
rapidity
1
rapidness
0
speediness
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APASmart Define. (2015). instantaneousness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/instantaneousness/thesaurus/broader
ChicagoSmart Define. 2015. "instantaneousness thesaurus" https://smartdefine.org/instantaneousness/thesaurus/broader (accessed September 22, 2026).
HarvardSmart Define 2015, instantaneousness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/instantaneousness/thesaurus/broader>.
MLASmart Define. "instantaneousness thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/instantaneousness/thesaurus/broader>