Synonyms|143Antonyms|4|Broader|4Narrower|4Related|67
4
quaternary(adjective, four)
4
rhombus(noun, square, diamond, angularity, oblong)
4
tetragonal
4
trapezoid
4
triangle(noun, angularity)
3
cubical
3
decagon(noun, angularity)
3
heptagon(noun, angularity)
3
hexagon(noun, angularity)
3
many-sided
3
octagon(noun, angularity)
3
pentagon(noun, angularity)
3
rhomboid(adjective, angularity)
3
solid
2
cube(noun, square)
2
cubed
2
cubic
2
lozenge(noun, angularity)
2
one-sided
2
orthogonal(square, equilateral)
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APASmart Define. (2015). quadrilateral thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/quadrilateral/thesaurus/synonyms
ChicagoSmart Define. 2015. "quadrilateral thesaurus" https://smartdefine.org/quadrilateral/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, quadrilateral thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/quadrilateral/thesaurus/synonyms>.
MLASmart Define. "quadrilateral thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/quadrilateral/thesaurus/synonyms>