8 entries under suddenly topic. ×

24
immediately(adverb, first, directly, quickly, haste)
19
instantly(adverb, first, directly, immediately, quickly)
13
abruptly(adverb, fast, quickly, rapidly, instantly)
13
quickly(adverb, fast, rapidly, earliness)
10
hastily(adverb, fast, quickly, rapidly)
10
suddenly(adverb, instantaneity, earliness, inexpectation)
3
unexpectedly(adverb, inexpectation)
2
precipitously
11 years ago|5.1k views|share |citing 
APASmart Define. (2015). instantaneously thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/instantaneously/thesaurus/synonyms
ChicagoSmart Define. 2015. "instantaneously thesaurus" https://smartdefine.org/instantaneously/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, instantaneously thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/instantaneously/thesaurus/synonyms>.
MLASmart Define. "instantaneously thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/instantaneously/thesaurus/synonyms>