Synonyms|119Antonyms|28|Broader|3Narrower|5Related|42
2
hindquarters
2
merchantman
2
rear(turn, back, contrary, opposite, reversal)
2
rump
2
stern
2
substructure(noun, base, foundation, ground, bed)
2
tail
2
wrong side(expression, idiom, turn, back, contrary)
1
about-face(turn, back, opposite, reversal, turning)
1
ass
1
back
1
backside
1
basement(noun, bottom)
1
bedrock
1
behind
1
bilge
1
bilges
1
bottom side
1
breech
1
buns
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APASmart Define. (2015). underside thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/underside/thesaurus/synonyms
ChicagoSmart Define. 2015. "underside thesaurus" https://smartdefine.org/underside/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, underside thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/underside/thesaurus/synonyms>.
MLASmart Define. "underside thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/underside/thesaurus/synonyms>