11
square(noun, adjective, regular, angularity, patterned)
5
quadrangular(adjective, angularity, four-sided, quadrilateral, right-angled)
5
quadrate(adjective, regular, square, symmetrical, angled)
4
quadrilateral(adjective, square, angularity, equilateral)
4
straight
3
cubical
3
forthright
3
open
3
rectangular(adjective, regular, square, angularity, patterned)
3
squarely
3
straightforward
2
candid
2
direct
2
honest
2
oblong
2
openhearted
2
orthogonal(adjective, regular, square, patterned, symmetrical)
2
plainspoken
2
quadratic(adjective, regular, square, patterned, symmetrical)
2
rhomboid
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APASmart Define. (2015). foursquare thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/foursquare/thesaurus/synonyms
ChicagoSmart Define. 2015. "foursquare thesaurus" https://smartdefine.org/foursquare/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, foursquare thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/foursquare/thesaurus/synonyms>.
MLASmart Define. "foursquare thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/foursquare/thesaurus/synonyms>