148 entries under upright topic. ×

5
sure(adjective, close, correct, flat, firm)
4
inflexible(adjective, direct, right, moderate, level)
4
invariable(adjective, direct, smooth, right, level)
4
real(adjective, good, open, direct, free)
4
serious(open, honest, humorless)
4
unchanging(adjective, close, smooth, correct, right)
4
upfront(adjective, open, honest, fair, proper)
3
beeline(adjective, adverb, direct, right, level)
3
kosher(adjective, good, open, correct, right)
3
rigid(adjective, tough, correct, moderate, severe)
3
standing(adjective, erect, vertical, upstanding)
3
steadfast(adjective, close, correct, firm, honest)
3
undistorted(adjective, close, direct, correct, right)
2
decorous(adjective, good, correct, right, appropriate)
2
dyed-in-the-wool(adjective, close, correct, firm, honest)
2
fast(adjective, adverb, close, correct, firm)
2
rightful(adjective, sound, correct, right, reasonable)
2
saintly(adjective, good, open, right, honest)
2
satisfying(reasonable, honest, realistic, authentic)
2
stiff(adjective, correct, tidy, particular)
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APASmart Define. (2015). straight thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/straight/thesaurus/synonyms
ChicagoSmart Define. 2015. "straight thesaurus" https://smartdefine.org/straight/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, straight thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/straight/thesaurus/synonyms>.
MLASmart Define. "straight thesaurus" 12 November 2015. Web. 27 September 2026. <https://smartdefine.org/straight/thesaurus/synonyms>