Synonyms|57Antonyms|0|Broader|0Narrower|0Related|14
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plane
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polygonal shape
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pyramidal
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quadratic(adjective, four-sided, quadrilateral, right-angled)
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quadratical(adjective, four-sided, quadrilateral, right-angled)
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quarry
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rectilinear(adjective, four-sided, quadrilateral, right-angled)
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rhomboidal
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six-sided
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squared(adjective, four-sided, quadrilateral, right-angled)
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squarish(adjective, four-sided, quadrilateral, right-angled)
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tetrad
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tetrahedral
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triangular
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trigonal
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trilateral
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wedge-shaped
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APASmart Define. (2015). quadrangular thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/quadrangular/thesaurus/synonyms
ChicagoSmart Define. 2015. "quadrangular thesaurus" https://smartdefine.org/quadrangular/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, quadrangular thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/quadrangular/thesaurus/synonyms>.
MLASmart Define. "quadrangular thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/quadrangular/thesaurus/synonyms>