Synonyms|439Antonyms|85|Broader|1Narrower|0Related|197

62 entries under idiom topic. ×

13
at once(expression, adverb, directly, immediately)
13
without delay(expression, adverb, directly, immediately)
11
like a shot(expression, adverb, fast, quickly)
7
like greased lightning(expression, adverb, quickly, rapidly)
6
in no time(expression, adverb, quickly, rapidly)
4
in a trice(expression, adverb)
3
in a flash(expression, adverb, directly, immediately)
3
like a flash(expression, adverb, quickly, rapidly)
3
on the double(expression, adverb, directly, immediately)
2
all at once(expression, adverb, quickly, unexpectedly)
2
at full speed(expression, adverb, velocity)
2
hell for leather
2
in a jiffy(expression, adverb)
2
in an instant(expression, adverb)
2
in double time(expression, adverb, soon, snappily)
2
in high gear(expression, adverb, soon, snappily)
2
in nothing flat(expression, adverb, directly, quickly)
2
in short order(expression, adverb, quickly, rapidly)
2
on the run
2
with all speed
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ChicagoSmart Define. 2016. "swiftly thesaurus" https://smartdefine.org/swiftly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, swiftly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/swiftly/thesaurus/synonyms>.
MLASmart Define. "swiftly thesaurus" 25 January 2016. Web. 24 September 2026. <https://smartdefine.org/swiftly/thesaurus/synonyms>