6
laudable(adjective, feature, characteristic, good, honor)
6
mullion(noun, support, post)
6
raised(adjective, firm, straight, erect, horizontal)
6
rampant
6
sheer(adjective, smooth, solid, level, true)
6
solid(adjective, strong, smooth, honest, level)
6
stainless(good, clear, honest, pure, virtuous)
6
stand-up(adjective, honest, fair, straight, moral)
6
steep(adjective, straight, erect, abrupt, vertical)
6
unbent
6
unbowed(adjective, bent)
6
uncorrupt(adjective, good, clear, clean, honest)
6
unsloped
6
upright piano(noun, expression, idiom)
6
virginal(adjective, good, clear, clean, pure)
5
above-board(adjective, honest, fair, proper, straight)
5
baluster(noun, support, post)
5
balustrade(noun, support, post)
5
banister(noun, support, post)
5
buttress(noun, support, post, pillar, dock)
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APASmart Define. (2015). upright thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/upright/thesaurus/synonyms
ChicagoSmart Define. 2015. "upright thesaurus" https://smartdefine.org/upright/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, upright thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/upright/thesaurus/synonyms>.
MLASmart Define. "upright thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/upright/thesaurus/synonyms>