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25 entries under posthaste topic. ×

1
like greased lightning(expression, idiom, soon, swiftly, snappily)
1
like wildfire(expression, soon, swiftly, snappily)
1
more rapidly(expression, soon, swiftly, snappily)
1
snappily(soon, swiftly, fleetly)
1
without warning(expression, soon, swiftly, snappily)
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APASmart Define. (2015). in high gear thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/in_high_gear/thesaurus/synonyms
ChicagoSmart Define. 2015. "in high gear thesaurus" https://smartdefine.org/in_high_gear/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, in high gear thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/in_high_gear/thesaurus/synonyms>.
MLASmart Define. "in high gear thesaurus" 13 April 2015. Web. 1 October 2026. <https://smartdefine.org/in_high_gear/thesaurus/synonyms>