Synonyms|74Antonyms|0|Broader|1Narrower|0Related|8

9 entries under perpendicular topic. ×

5
upright(adjective, straight, steep, erect, vertical)
4
erect(adjective, straight, upright, steep, vertical)
2
vertical(adjective, straight, upright, erect, upstanding)
1
cocked(straight, upright, erect, vertical)
1
plumb(adjective, straight, upright, steep, erect)
1
sheer(adjective, straight, upright, steep, erect)
1
steep(adjective, straight, upright, erect, vertical)
1
straight-up(adjective, straight, upright, steep, erect)
0
upward(straight, upright, erect)
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APASmart Define. (2015). on end thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/on_end/thesaurus/synonyms
ChicagoSmart Define. 2015. "on end thesaurus" https://smartdefine.org/on_end/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, on end thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/on_end/thesaurus/synonyms>.
MLASmart Define. "on end thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/on_end/thesaurus/synonyms>