26 entries under adjective topic. ×

20
square(noun, form, square, angularity)
13
four-sided(square, equilateral)
11
diamond(noun, form, angularity, oblong)
10
rectangular(square, angularity, four, equilateral)
8
quadrangular(angularity, four)
8
four(noun, four)
6
multilateral(angularity, laterality)
4
bilateral
4
quad(noun, four)
4
quartet(noun, four)
4
trilateral(angularity, laterality)
4
quadrate(square, equilateral)
4
quaternary
4
tetragonal
3
rhomboid
2
cubed
2
cubic
2
tetrahedral
1
boxy(square, equilateral)
1
equilateral
<12>
11 years ago|3.2k views|share |citing 
APASmart Define. (2015). quadrilateral thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/quadrilateral/thesaurus/synonyms
ChicagoSmart Define. 2015. "quadrilateral thesaurus" https://smartdefine.org/quadrilateral/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, quadrilateral thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/quadrilateral/thesaurus/synonyms>.
MLASmart Define. "quadrilateral thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/quadrilateral/thesaurus/synonyms>