201 entries under active topic. ×

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in use(expression, alive, operative, existing)
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involved(adjective, bright, energetic, cheerful)
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jocund(adjective, bright, energetic, cheerful)
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jolly(adjective, energetic, enthusiastic, lively)
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merry(adjective, bright, energetic, cheerful)
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nimble-witted(bright, wise, sharp-witted, quick-thinking)
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ongoing(alive, operative, existing, breathing)
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operating(operative, operational)
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operational
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overflowing(energetic, ready, eager, busy)
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persisting(alive, operative, existing, breathing)
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pert(adjective, bright, energetic, cheerful)
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provocative(adjective, bright, energetic, cheerful)
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receptive(bright, wise, sharp-witted, quick-thinking)
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replete(energetic, ready, eager, busy)
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rife(energetic, ready, eager, busy)
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subsisting(alive, operative, existing, breathing)
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swarming(energetic, ready, eager, busy)
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teeming(energetic, ready, eager, busy)
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ticking(alive, operative, existing, breathing)
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APASmart Define. (2016). vigorous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms
ChicagoSmart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, vigorous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>.
MLASmart Define. "vigorous thesaurus" 1 April 2016. Web. 24 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms>