Synonyms|25Antonyms|1|Broader|0Narrower|0Related|0
2
all at once(expression, idiom, quickly, unexpectedly, abruptly)
1
all of a sudden(expression, idiom, quickly, unexpectedly, abruptly)
1
on spur of moment(expression, idiom, quickly, unexpectedly, abruptly)
1
short(quickly, unexpectedly, abruptly, ignorantly, unanticipatedly)
1
unanticipatedly(quickly, unexpectedly, abruptly, ignorantly, uniformed)
1
without warning(expression, quickly, unexpectedly, abruptly, ignorantly)
0
aback
0
abruptly
0
by surprise(expression, ignorantly, unanticipatedly, uniformed)
0
forthwith
0
in the dark(expression, idiom, unanticipatedly, uniformed)
0
out of the blue
0
precipitously
0
quickly
0
rapidly
0
speedily
0
sudden
0
suddenly(unexpectedly, abruptly, ignorantly, unanticipatedly, uniformed)
0
swiftly(quickly, unexpectedly, abruptly)
0
unaware(unexpectedly, abruptly, unanticipatedly, uniformed)
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APASmart Define. (1970). asudden thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/asudden/thesaurus/synonyms
ChicagoSmart Define. 1970. "asudden thesaurus" https://smartdefine.org/asudden/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 1970, asudden thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/asudden/thesaurus/synonyms>.
MLASmart Define. "asudden thesaurus" 1 January 1970. Web. 20 September 2026. <https://smartdefine.org/asudden/thesaurus/synonyms>