5
out of the blue(expression, adjective, idiom, sudden)
5
recklessly
5
reliable(adjective, calm, close, strong, secure)
5
resolute(adjective, calm, close, strong, secure)
5
running(adjective, hasty)
5
rushing(adjective, violent, quick, abrupt, hasty)
5
securely(adverb, firm, thoroughly, strongly, firmly)
5
snug(adjective, close, strong, warm, firm)
5
soon(adverb, quickly, rapidly, swiftly, snappily)
5
tightly(adverb, firm, severely, thoroughly, intensely)
5
truehearted(adjective, honest, pure, sure, constant)
5
unbridled(adjective, free, restraint, immoral, unrestrained)
5
unchanging(adjective, close, correct, firm, honest)
5
wedged(adjective, firm, constant, steadfast, unwavering)
5
winged(adjective, quick, rapid, speedy, brisk)
4
abiding(adjective, calm, strong, secure, tough)
4
abstinence(noun, diet)
4
alacritous(adjective, prompt, quick)
4
balanced(adjective, calm, strong, secure, firm)
4
breathless(adjective, hasty, urgent)
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APASmart Define. (2016). fast thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fast/thesaurus/synonyms
ChicagoSmart Define. 2016. "fast thesaurus" https://smartdefine.org/fast/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, fast thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fast/thesaurus/synonyms>.
MLASmart Define. "fast thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/fast/thesaurus/synonyms>