51 entries under insubstantial topic. ×

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nimble(adjective, elegant, slim, graceful)
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not heavy(expression, adjective, buoyant, fluffy)
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porous(adjective, buoyant, fluffy, frothy)
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portable(adjective, buoyant, fluffy, frothy)
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sandy(adjective, buoyant, fluffy, frothy)
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spongy(adjective, buoyant, fluffy, frothy)
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sprightly(adjective, buoyant, fluffy, frothy)
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tissuelike(adjective, buoyant, fluffy, frothy)
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trifling(adjective, buoyant, fluffy, frothy)
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unheavy(adjective, buoyant, fluffy, frothy)
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weightless(adjective, thin, flimsy, buoyant)
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APASmart Define. (2015). wispy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/wispy/thesaurus/synonyms
ChicagoSmart Define. 2015. "wispy thesaurus" https://smartdefine.org/wispy/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, wispy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/wispy/thesaurus/synonyms>.
MLASmart Define. "wispy thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/wispy/thesaurus/synonyms>