Synonyms|275Antonyms|78|Broader|10Narrower|5Related|523
8
horizontal
5
parallel
3
inclined
3
oblique
2
flat
2
collateral
1
diagonal
1
level
1
bias
1
cata-cornered
1
catacorner
1
cater-cornered
1
catercorner
1
catty-corner
1
catty-cornered
1
crabwise
1
gradual
1
kitty-corner
1
nonconvergent
1
nonintersecting
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APASmart Define. (2015). perpendicular thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/perpendicular/thesaurus/antonyms
ChicagoSmart Define. 2015. "perpendicular thesaurus" https://smartdefine.org/perpendicular/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, perpendicular thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/perpendicular/thesaurus/antonyms>.
MLASmart Define. "perpendicular thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/perpendicular/thesaurus/antonyms>