Synonyms|274Antonyms|50|Broader|3Narrower|0Related|306

9 entries under perpendicular topic. ×

4
upright(adjective, adverb, straight, erect, vertical)
3
vertical(adjective, straight, upright, erect)
0
cocked(adjective, straight, upright, steep, erect)
0
erect(straight, upright)
0
on end(expression, straight, upright, erect)
0
plumb(straight, upright, erect)
0
sheer(straight, upright, erect)
0
steep(straight, upright, erect)
0
straight-up(straight, upright, erect)
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APASmart Define. (2015). upward thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/upward/thesaurus/synonyms
ChicagoSmart Define. 2015. "upward thesaurus" https://smartdefine.org/upward/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, upward thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/upward/thesaurus/synonyms>.
MLASmart Define. "upward thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/upward/thesaurus/synonyms>