13 entries under rectangular topic. ×

5
equilateral(adjective, regular, square, symmetrical, angled)
4
rectilinear(adjective, regular, square, symmetrical, angled)
3
orthogonal(adjective, regular, square, symmetrical, angled)
2
quadratic(adjective, regular, square, symmetrical, angled)
1
boxlike(adjective, regular, square, symmetrical, angled)
1
boxy(adjective, regular, square, symmetrical, angled)
1
equal-sided(adjective, regular, square, symmetrical, angled)
1
foursquare(adjective, regular, square, symmetrical, angled)
1
quadrate(adjective, regular, square, symmetrical, angled)
1
quadratical(adjective, regular, square, symmetrical, angled)
1
right-angled(adjective, regular, square, symmetrical, angled)
1
squarish(adjective, regular, square, symmetrical, angled)
0
squared(adjective, regular, square, symmetrical, angled)
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APASmart Define. (2015). four-sided thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/four-sided/thesaurus/synonyms
ChicagoSmart Define. 2015. "four-sided thesaurus" https://smartdefine.org/four-sided/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, four-sided thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/four-sided/thesaurus/synonyms>.
MLASmart Define. "four-sided thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/four-sided/thesaurus/synonyms>