Synonyms|69Antonyms|0|Broader|5Narrower|0Related|14

43 entries under noun topic. ×

12
immediacy(instantaneity, suddenness, timelessness)
6
immediateness
5
instancy
5
quickness
3
alacrity
3
celerity
3
haste
3
instantaneity
3
promptness
3
rapidity
3
transience
2
dispatch
2
imperativeness
2
instant
2
speed
2
speediness
2
suddenness(instantaneity, suddenness)
2
swiftness
1
briefness
1
evanescence
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APASmart Define. (2015). instantaneousness thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/instantaneousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "instantaneousness thesaurus" https://smartdefine.org/instantaneousness/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, instantaneousness thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/instantaneousness/thesaurus/synonyms>.
MLASmart Define. "instantaneousness thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/instantaneousness/thesaurus/synonyms>