8
triangular
8
trilateral
3
many-sided
3
multilateral
3
tripartite
1
bilateral
1
deltoid
1
lateral
1
one-sided
1
polyhedral
1
quadrilateral
1
sided
1
three-dimensional
1
three-party
1
trident
1
trifurcate
1
two-sided
1
unilateral
0
cuneate
0
three-cornered
<12>
11 years ago|578 views|share |citing 
APASmart Define. (2015). three-sided thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/three-sided/thesaurus/synonyms
ChicagoSmart Define. 2015. "three-sided thesaurus" https://smartdefine.org/three-sided/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, three-sided thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/three-sided/thesaurus/synonyms>.
MLASmart Define. "three-sided thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/three-sided/thesaurus/synonyms>