Synonyms|275Antonyms|78|Broader|10Narrower|5Related|523
3
straight-up(adjective, sharp, course, straight, upright)
2
English-Gothic
2
level
2
bluff(noun, adjective)
2
direct(adjective, straight)
2
longitudinal(adjective, vertical)
2
plumb line(noun, expression, idiom)
2
English-Gothic architecture
2
at right angles(expression, idiom)
2
axis
2
chord
2
diameter
2
high(adjective, sharp, course, quick, rash)
2
on end(expression, adjective, straight, upright, erect)
2
perpendicular style
2
straight line(expression, idiom)
2
sudden(adjective, sharp, sheer, vertical)
2
true
2
upended(adjective, straight, erect, vertical, upstanding)
1
abeam
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APASmart Define. (2015). perpendicular thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/perpendicular/thesaurus/synonyms
ChicagoSmart Define. 2015. "perpendicular thesaurus" https://smartdefine.org/perpendicular/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, perpendicular thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/perpendicular/thesaurus/synonyms>.
MLASmart Define. "perpendicular thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/perpendicular/thesaurus/synonyms>