Synonyms|108Antonyms|2|Broader|0Narrower|0Related|20
1
straight away(expression, directly, immediately, rapidly, instantly)
1
straight off(expression, directly, immediately, rapidly, instantly)
1
summarily(directly, immediately, rapidly, instantly)
1
swift(quickly, rapidly, speedily)
1
thereupon(directly, immediately, rapidly, instantly)
1
this instant(expression, directly, immediately, rapidly, instantly)
1
this minute(expression, directly, immediately, rapidly, instantly)
1
tout de suite(expression, idiom, directly, immediately, rapidly)
1
unhesitatingly(directly, immediately, rapidly, instantly, shortly)
1
without delay(expression, directly, immediately, quickly, rapidly)
1
without hesitation(expression, directly, immediately, rapidly, instantly)
0
urgently(directly, immediately, rapidly, instantly, shortly)
0
abruptly
0
abundance
0
all of a sudden(expression, idiom, adverb, quickly, suddenly)
0
at the double(expression, idiom, quickly, rapidly, speedily)
0
bow
0
cholera
0
double-quick
0
flat out(adverb, fast)
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APASmart Define. (2015). in a flash thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/in_a_flash/thesaurus/synonyms
ChicagoSmart Define. 2015. "in a flash thesaurus" https://smartdefine.org/in_a_flash/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, in a flash thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/in_a_flash/thesaurus/synonyms>.
MLASmart Define. "in a flash thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/in_a_flash/thesaurus/synonyms>