Synonyms|155Antonyms|1|Broader|1Narrower|2Related|39
2
backside
2
bag
2
bedrock(noun, support, substance, authority, base)
2
behind
2
bum
2
buns
2
butt
2
buttocks
2
can
2
creation
2
derriere
2
fanny
2
flooring
2
founding
2
ft
2
fundamental
2
ground(noun, support, substance, authority, base)
2
grounding
2
grounds(substance, basis)
2
hindquarters
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APASmart Define. (2015). understructure thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/understructure/thesaurus/synonyms
ChicagoSmart Define. 2015. "understructure thesaurus" https://smartdefine.org/understructure/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, understructure thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/understructure/thesaurus/synonyms>.
MLASmart Define. "understructure thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/understructure/thesaurus/synonyms>