Synonyms|96Antonyms|2|Broader|4Narrower|0Related|105
3
quadrilateral(adjective, four)
3
quartet
3
quartette
3
quartile
3
quatern
3
quaternion
3
quaternity
3
tetrad
2
4
2
4th
2
IV
2
Little Joe
2
Little Joe
2
quadrangle
2
rectangle
2
tetractinal
2
tetralogy
1
biquadrate
1
biquadratic
1
cretaceous
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APASmart Define. (2015). quaternary thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/quaternary/thesaurus/synonyms
ChicagoSmart Define. 2015. "quaternary thesaurus" https://smartdefine.org/quaternary/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, quaternary thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/quaternary/thesaurus/synonyms>.
MLASmart Define. "quaternary thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/quaternary/thesaurus/synonyms>