Synonyms|662Antonyms|133|Broader|4Narrower|0Related|376

21 entries under fast topic. ×

29
quickly(adverb, rapidly, pronto, punctually)
25
speedily(adverb, time, early, timely)
21
directly(noun, adverb, quickly, rapidly)
21
swiftly(adverb, quickly, rapidly, pronto)
20
pronto(adjective, adverb, immediately, quickly)
13
instantaneously(adverb, quickly, rapidly, pronto)
13
rapidly(adverb, quickly, pronto)
12
hastily(adverb, quickly, rapidly, pronto)
10
hurriedly(adverb, quickly, rapidly, pronto)
9
apace(adverb, quickly, rapidly, pronto)
8
briskly(adverb, quickly, rapidly, pronto)
7
in haste(adverb, quickly, rapidly, pronto)
6
abruptly(adverb, quickly, rapidly, pronto)
6
chop-chop(adverb, quickly, rapidly, pronto)
6
posthaste(adjective, adverb, quick, early)
5
like a shot(expression, idiom, adverb, quickly)
3
at speed(adverb, quickly, rapidly, pronto)
3
in a hurry(adverb, quickly, rapidly, pronto)
3
in a rush(adverb, quickly, rapidly, pronto)
3
like lighting(adverb, quickly, rapidly, pronto)
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HarvardSmart Define 2016, promptly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/promptly/thesaurus/synonyms>.
MLASmart Define. "promptly thesaurus" 21 March 2016. Web. 24 September 2026. <https://smartdefine.org/promptly/thesaurus/synonyms>